{"title":"Dew Prevention and Control","description":"\u003cdiv\u003e\n  \u003cp\u003e\n    Dew ends more Canadian observing sessions than cloud does. A corrector plate or objective radiating heat to a clear sky drops below the dew point well before the air does, and once condensation forms on a large optic it will not clear on its own. David Astro carries dew prevention and control products in Canada — heater straps, controllers, shields and power distribution — held in stock for fast domestic shipping.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Prevention is straightforward and cheap; recovery is neither. Tell us your telescope aperture and where you observe and we will specify a system that keeps optics clear all night.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- more --\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eHow Dew Forms and How to Stop It\u003c\/h2\u003e\n  \u003cp\u003e\n    An optic pointed at a clear sky radiates heat into space and cools below ambient air temperature. When it falls below the dew point, water condenses on it. The fix is to hold the glass a few degrees above ambient, not to heat it aggressively.\n  \u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-us\/collections\/dew-heaters-and-controllers\"\u003eHeater straps:\u003c\/a\u003e\u003c\/strong\u003e Resistive bands sized to specific apertures, wrapped near the objective or corrector to keep the glass just above dew point.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-us\/collections\/dew-heaters-and-controllers\"\u003eDew controllers:\u003c\/a\u003e\u003c\/strong\u003e Pulse-width controllers that regulate power rather than running heaters continuously, which saves battery and avoids introducing tube currents.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-us\/collections\/dew-shields\"\u003eDew shields:\u003c\/a\u003e\u003c\/strong\u003e Extend the tube beyond the objective, reducing the sky area the optic radiates to. Passive, free to run, and often enough on their own for refractors.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeated eyepiece and finder bands:\u003c\/strong\u003e Small straps for eyepieces, finders and guide scopes, which dew up as readily as the main optic and are often forgotten.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-us\/collections\/power-modules\"\u003ePower distribution:\u003c\/a\u003e\u003c\/strong\u003e Dew heaters draw significant current, and a distribution box sized for the total load prevents voltage sag affecting the mount.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-us\/collections\/desiccants\"\u003eDesiccants:\u003c\/a\u003e\u003c\/strong\u003e Control moisture inside stored equipment, where slow condensation cycling causes long-term damage.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eWhy Choose David Astro for Dew Control\u003c\/h2\u003e\n  \u003cp\u003e\n    We observe through Canadian humidity and Canadian cold, which are different problems requiring different amounts of power.\n  \u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePower budgeted for the whole night:\u003c\/strong\u003e We total heater draw against your supply capacity, because a battery that runs the mount for eight hours may run mount plus heaters for three.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSized to aperture:\u003c\/strong\u003e Strap length and wattage are matched to your specific optic. An undersized strap runs at full power and still loses; an oversized one wastes battery and can induce tube currents.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eController recommended, not optional:\u003c\/strong\u003e Running heaters unregulated wastes power and can degrade seeing through the tube. We recommend a controller with any heater purchase.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAuthorized dealer:\u003c\/strong\u003e Genuine products with manufacturer warranty, in Canadian stock.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShips from Canada:\u003c\/strong\u003e No duties or brokerage fees on Canadian orders.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eDew Control in Canada — Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003e\u003cstrong\u003eIs a dew shield enough on its own?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eOften for refractors, which have a recessed objective and can use a long shield. Schmidt-Cassegrains, with the corrector at the front, almost always need a heater as well.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eHow much power do dew heaters draw?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eEnough to matter — a large strap can draw several amps at full output. A controller typically cuts average consumption substantially by pulsing rather than running continuously.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eCan I use a hair dryer to clear dew?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eIt works but is a poor solution. Rapid heating creates tube currents that ruin seeing for a long time afterwards, and the dew returns within minutes. Prevention with a low-power heater is far better.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eDo I need dew control in winter?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eYes, and frost is the winter version of the same problem. It forms by the same radiative cooling mechanism and is harder to remove without damaging coatings, so prevention matters more, not less.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eLosing nights to dew?\u003c\/h2\u003e\n  \u003cp\u003eTell us your aperture and power setup and we will specify heaters, a controller and a shield. In Canadian stock, shipped worldwide.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"celestron-dew-shield-dx-for-c6-c8","title":"Celestron Dew Shield DX for C6 \u0026 C8","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrevents dew formation on 6\" and 8\" Schmidt-Cassegrain, EdgeHD, and RASA corrector plates\u003c\/li\u003e\n\u003cli\u003eBlocks stray light to improve image contrast\u003c\/li\u003e\n\u003cli\u003eConstructed from durable Polyethelene (PE) plastic weighing 1.0 lbs\u003c\/li\u003e\n\u003cli\u003eFelt-lined interior absorbs moisture and light\u003c\/li\u003e\n\u003cli\u003eSecure Velcro attachment with a wide dovetail cutout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Shield DX for C6 \u0026amp; C8\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Shield DX is an essential field accessory for any 6” or 8” Schmidt-Cassegrain, EdgeHD, or RASA owner, built from a flexible 3.556mm thick Polyethelene plastic that weighs just 1.0 lbs. It physically blocks moisture from condensing on your corrector lens and shields your optics from off-axis stray light, improving contrast for both visual observation and imaging. The shield measures 330.2mm by 797.56mm, rolling into a compact form for easy transport.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual-Purpose Field Protection: Blocking Dew and Stray Light\u003c\/h3\u003e\n\u003cp\u003eThe primary function of the Dew Shield DX is to prevent dew, which can end an observing session prematurely by fogging your optics. By extending the optical tube, it creates a buffer of air that slows the rate at which the corrector plate cools to the dew point. For imagers and visual observers, it also serves as a lens hood, blocking stray light from nearby sources from entering the telescope and reducing image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Fit for 6\" \u0026amp; 8\" OTAs: Padded, Felt-Lined Construction\u003c\/h3\u003e\n\u003cp\u003eCelestron engineered the Dew Shield DX for a secure, non-slip fit on both 6\" and 8\" optical tubes. The attachment edge features extra padding to grip the tube firmly, while the interior is lined with felt to absorb any stray light that enters and wick away excess moisture. A large, deep dovetail cutout accommodates rails up to 4\" wide, ensuring a solid connection that doesn't interfere with your mount setup, and adjustable Velcro closures provide a custom fit for either aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew Shield DX fit my Celestron 8\" EdgeHD on a CGEM II mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Dew Shield DX is designed specifically for Celestron's 6\" and 8\" OTAs, including the EdgeHD series. The wide and deep dovetail cutout ensures it will fit securely around the CGE or Losmandy D-style dovetail bar used on mounts like the CGEM II without obstruction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow effective is the Dew Shield DX for imaging the Orion Nebula (M42) from a light-polluted area?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile a dew shield cannot eliminate skyglow, it significantly improves contrast by blocking local, off-axis light sources like streetlights or porch lights. When imaging a bright object like the Orion Nebula (M42), this shielding helps darken the background and makes faint outer details more visible against the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the felt lining inside the Dew Shield DX?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe felt lining serves two purposes. First, it's matte black to absorb any stray light that might otherwise reflect off the inner surface of the shield and into your optics. Second, it absorbs moisture, helping to manage condensation and keep your corrector plate clear for longer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew Shield DX difficult to transport?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is designed for portability. The flexible PE plastic allows you to roll the shield up into a much smaller cylinder. At only 1.0 lbs, it adds minimal weight to your gear kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Velcro attachment work for both 6\" and 8\" telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe shield has a long strip of Velcro that allows you to adjust the circumference. You simply wrap the shield around your optical tube and secure the Velcro at the appropriate point to create a snug fit, whether it's a 6\" or 8\" model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this on a non-Celestron 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it is designed for a custom fit on Celestron 6\" and 8\" OTAs, it may fit other brands of Schmidt-Cassegrains with similar tube diameters. The key is the adjustable Velcro closure, which provides flexibility, but the fit around the dovetail bar may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePE - Polyethelene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.0 lbs (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e330.2mm x 797.56mm x 3.556mm (13\" x 31.4\" x .14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCelestron Dew Shield DX for C6 \u0026amp; C8\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967183024413,"sku":"CEL-94018","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Shield-DX-C6-C8-94018-1__77995.1602711174.1280.1280.jpg?v=1684338195"},{"product_id":"zwo-anti-dew-heater-strip","title":"ZWO Anti-Dew Heater Strip","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eMaintains a clear sensor window on ZWO ASI cooled cameras\u003c\/li\u003e\n\u003cli\u003eConsumes a minimal 4.2 watts of power\u003c\/li\u003e\n\u003cli\u003eUltra-thin 0.2 mm to 0.3 mm profile for a non-intrusive fit\u003c\/li\u003e\n\u003cli\u003eIntegrates directly with camera cooler power via included Y-cord\u003c\/li\u003e\n\u003cli\u003eBacked by a 2-year ZWO warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eZWO Anti-Dew Heater Strip for Cooled ASI Cameras\u003c\/h2\u003e\n\u003cp\u003eThe ZWO Anti-Dew Heater Strip prevents moisture from condensing on your ASI cooled camera's AR sensor window by drawing a consistent 4.2 watts to keep the glass just above the dew point. Its ultra-thin 0.2 mm to 0.3 mm profile installs with a simple adhesive backing, providing essential protection from dew without adding bulk to your imaging train. This heater strip integrates seamlessly with your existing setup, using an included Y-power cord to run in-line with your camera's cooler power supply, and is supported by a 2-year warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEfficient 4.2W Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eDesigned for field use where power is at a premium, this heater strip provides just enough warmth to combat dew with a minimal power draw of 4.2 watts. It operates on a 12V DC input at 0.35A, allowing it to share power with your camera's cooling system without overloading portable power supplies. This low consumption is the key trade-off, offering protection against common dew formation without the high power draw of larger, multi-element heater systems designed for main objectives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUltra-Thin 0.2 mm Profile and Simple Installation\u003c\/h3\u003e\n\u003cp\u003eThe heater strip itself is only 0.2 mm to 0.3 mm thick, ensuring it fits cleanly around the sensor window without interfering with filter wheels or other close-tolerance accessories. Installation is straightforward: the adhesive backing secures the strip directly to the camera body around the window. The flexible design conforms to the camera's housing for maximum surface contact and efficient heat transfer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive Backing:\u003c\/strong\u003e Allows for a secure, semi-permanent installation directly on the camera body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Circuit:\u003c\/strong\u003e Conforms to the circular housing around the camera's sensor window.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Profile:\u003c\/strong\u003e Avoids mechanical conflicts with other accessories in the imaging train.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Power Integration with the Included Y-Cord\u003c\/h3\u003e\n\u003cp\u003eZWO simplifies power management by including a Y-power cord with the heater strip. This splitter allows the heater and the camera's TEC cooler to run from the same 12V power port, eliminating the need for a separate power supply or extra cables running from your power hub. Simply plug your main power cord into one leg of the \"Y\" and connect the other two ends to the camera cooler and the heater strip for a clean, integrated power solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the ZWO Anti-Dew Heater Strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is simple. First, clean the surface of your camera around the AR sensor window. Then, peel the protective layer off the heater's adhesive backing and carefully press the strip into place around the window. Use the included zip ties to secure the power cable neatly against the camera body, preventing snags.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply is needed for the ZWO Anti-Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ZWO Anti-Dew Heater requires a \u003cstrong\u003e12V DC power source capable of supplying at least 0.35A\u003c\/strong\u003e. Because it includes a Y-power cord, it's designed to run in parallel with your camera's cooler. Ensure your total power supply can handle the combined load of the cooler and the 4.2W heater strip, especially when powering through a device like an ASIAIR.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this ZWO heater strip work on a non-ZWO camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis strip is specifically designed for the form factor of \u003cstrong\u003eZWO ASI Cooled Cameras\u003c\/strong\u003e. While it may physically fit other cameras, proper performance and fit are only guaranteed on the intended ZWO models. Using it on other brands may result in an improper fit and inefficient heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Y-power cord for the ZWO heater work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Y-power cord is a power splitter. It has one female input and two male outputs. You connect your main 12V power cable (from your power supply or ASIAIR) to the female input. You then connect one male output to your camera's cooling power port and the other male output to the dew heater strip's plug.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ZWO Anti-Dew Heater Strip on my 50mm guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this heater is not designed for that purpose. It is a small, low-power strip intended to warm the tiny AR window on a cooled camera sensor. It does not have the size or power output required to keep a 50mm objective lens on a guide scope clear of dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ZWO Anti-Dew Heater always on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, whenever it is connected to a 12V power source, the heater strip will be active and drawing its rated 4.2 watts. There is no built-in thermostat or controller; it provides continuous, gentle heating to stay ahead of dew formation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eZWO-ANTI-DEW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eZWO ASI Cooled Cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e4.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e12V @ 0.35A DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e0.2 mm - 0.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eZWO Anti-Dew Heating Strip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eY Power Cord\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eZip Ties\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.zwoastro.com\/software\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":44967389397277,"sku":"ZWO-Anti-dew","price":27.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-Anti-dew-heater-strip-1__15717.1642537601.1280.1280.jpg?v=1684341760"},{"product_id":"farpoint-desiccant-cap-1-25","title":"Farpoint Desiccant Cap - 1.25\"","description":"\u003c!-- more --\u003e\u003cp\u003eMoisture is a menace to fine optics. Alleviate this threat with Farpoint 1.25 Inch Desiccant Cap for closed tube telescopes with 1.25\" focusers.\u003c\/p\u003e\u003cp\u003eFinely machined and beautifully anodized to match the fit and finish of most telescopes, this Desiccant Cap holds a desiccant pouch that will keep the inside of equipment comfortably dry.\u003c\/p\u003e\u003cp\u003eIncludes five silica gel pouches of desiccant and a rubber cap to keep desiccant dry when the cap is not in the focuser.\u003c\/p\u003e\u003cp\u003eAdditional Desiccant Cap Refill – 20 Pack sold separately.\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"Default Title","offer_id":44967475773725,"sku":"FAP-FP326","price":74.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Desiccant-Cap-1-25-inch-1__39096.1597638158.1280.1280.jpg?v=1684342652"},{"product_id":"farpoint-reusable-dry-pack-4-pack","title":"Farpoint Reusable Dry Pack - 4 Pack","description":"\u003c!-- more --\u003e\u003cp\u003eFarpoint Reusable Dry Pack – 4 Pack is a set of four rechargeable desiccant packs that can be stored in cases to absorb any residual dew from observing sessions and protect your equipment from troublesome moisture.\u003c\/p\u003e\u003cp\u003eThe beads in the pack will turn pink signaling that it is time to regenerate the pack for another use.  Regeneration is accomplished by placing this special pack in the microwave.  Simply place the pack in the microwave oven and microwave on 50% power for 30 seconds. Wait 15 seconds and then microwave again. Repeat the heat and rest cycle until the desiccant beads turn deep blue, indicating that it can be used again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e Do not heat for more than 30 seconds at a time as the pack will overheat and melt.\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"Default Title","offer_id":44967476429085,"sku":"FAP-FP331","price":74.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Reusable-Dry-Pack-4-Pack-1__74675.1597638160.1280.1280.jpg?v=1684342650"},{"product_id":"farpoint-flexible-dew-shield-for-celestron-meade","title":"Farpoint Flexible Dew Shield - for Celestron \u0026 Meade","description":"\u003c!-- more --\u003e\u003cp\u003eFarpoint Dew Shield  is a virtually indestructible cover.  Simply attach the flexible cover to the front of the optical tube to prevent moisture build up on the lens.  Made with tough, flexible ABS plastic and lined with black felt to cut down reflection and prevent sliding onto the telescope corrector plate.\u003c\/p\u003e\u003cp\u003eProtects delicate optical equipment and allows for moisture-free observing sessions.\u003c\/p\u003e\u003cp\u003eSome specified models feature a notch to accommodate a “V” size dovetail bar.  Fits Celestron or Meade Schmidt-Cassegrain telescopes.\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"Celestron 4\/4SE SCT","offer_id":44967476527389,"sku":"FAP-FP336","price":34.0,"currency_code":"CAD","in_stock":true},{"title":"Celestron 5\/5SE SCT","offer_id":44967476560157,"sku":"FAP-FP337","price":34.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 6SE SCT","offer_id":44967476592925,"sku":"FAP-FP339","price":37.0,"currency_code":"CAD","in_stock":false},{"title":"8\" SCT - Single Notch for V-Series","offer_id":44967476625693,"sku":"FAP-FP351","price":51.0,"currency_code":"CAD","in_stock":false},{"title":"8\" SCT - No Notch","offer_id":44967476658461,"sku":"FAP-FP350","price":51.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 9.25\" SCT - No Notch","offer_id":44967476691229,"sku":"FAP-FP354","price":55.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 9.25\" SCT - Single Notch for V-Series","offer_id":44967476723997,"sku":"FAP-FP355","price":55.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 11\" SCT - No Notch","offer_id":44967476756765,"sku":"FAP-FP358","price":88.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 11\" SCT - Single Notch for V-Series","offer_id":44967476789533,"sku":"FAP-FP359","price":88.0,"currency_code":"CAD","in_stock":false},{"title":"Celestron 14\" SCT - No Notch","offer_id":44967476822301,"sku":"FAP-FP362","price":134.0,"currency_code":"CAD","in_stock":false},{"title":"Meade ETX 90 SCT","offer_id":44967476855069,"sku":"FAP-FP342","price":51.0,"currency_code":"CAD","in_stock":false},{"title":"Meade 10\" SCT - No Notch","offer_id":44967476887837,"sku":"FAP-FP369","price":68.0,"currency_code":"CAD","in_stock":false},{"title":"Meade 10\" SCT - Single Notch for V-Series","offer_id":44967476920605,"sku":"FAP-FP370","price":68.0,"currency_code":"CAD","in_stock":false},{"title":"Meade 12\" SCT - No Notch","offer_id":44967476953373,"sku":"FAP-FP373","price":94.0,"currency_code":"CAD","in_stock":false},{"title":"Meade 14\" SCT - No Notch","offer_id":44967476986141,"sku":"FAP-FP376","price":134.0,"currency_code":"CAD","in_stock":false},{"title":"Meade 16\" SCT - No Notch","offer_id":44967477018909,"sku":"FAP-FP380","price":140.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Flexible-Dew-Shield-for-Celestron-Meade-3__93370.1597716203.1280.1280.jpg?v=1684342654"},{"product_id":"pegasus-dewzap-dual-channel-dew-heater-controller","title":"Pegasus DewZap - Dual Channel Dew Heater Controller","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual Channel Control for Two Dew Heaters\u003c\/li\u003e\n\u003cli\u003e5 Amps Per Channel (10 Amps Total)\u003c\/li\u003e\n\u003cli\u003e0-100% Pulse Width Modulation (PWM) Output\u003c\/li\u003e\n\u003cli\u003eAccepts 12V-13.8V DC Input\u003c\/li\u003e\n\u003cli\u003eCompact 66mm x 66mm x 28mm Enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePegasus Astro DewZap Dual Channel Dew Heater Controller\u003c\/h2\u003e\n\u003cp\u003eThe Pegasus Astro DewZap delivers efficient, reliable dew prevention in a compact 66mm x 66mm x 28mm package designed for any imaging rig. Its dual channels supply up to 5 Amps of current each via Pulse Width Modulation (PWM), providing precise 0-100% power adjustment for two separate dew straps from a standard 12V DC input. Powerful internal MOSFETs ensure there are no voltage drops, sending full power to your heaters when you need it most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual-Channel PWM Control: 5 Amps Per Channel\u003c\/h3\u003e\n\u003cp\u003eThe DewZap manages two independent heater outputs, each capable of handling a 5 Amp load. Instead of using inefficient resistors, it employs Pulse Width Modulation (PWM) to digitally control power from 0-100% with a simple turn of a knob. This modern digital approach prevents voltage drops, ensuring your dew straps receive the full input voltage for maximum heating efficiency, even at partial power settings.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Amps Total Capacity:\u003c\/strong\u003e Run two high-power dew straps for a large primary mirror and a secondary mirror or guidescope simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Voltage Drop:\u003c\/strong\u003e Powerful MOSFETs on each of the 2 channels guarantee that the output voltage matches the 12V-13.8V input, unlike simpler resistor-based controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse Polarity Protection:\u003c\/strong\u003e The controller is internally protected against accidental reverse power connections, safeguarding your equipment in the field.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCompact 66mm Design with 2 RCA Outputs\u003c\/h3\u003e\n\u003cp\u003eEngineered to be unobtrusive, the DewZap's rugged enclosure measures just 66mm x 66mm x 28mm. Power is supplied via a common 2.1mm center-positive socket, and the two heater outputs use industry-standard RCA connectors for broad compatibility with most dew straps on the market. A dedicated LED for each channel provides an immediate visual indication of the power level, glowing brighter as you increase the output.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandardized Connections:\u003c\/strong\u003e The 2.1mm power input and 2 x RCA outputs make it a simple drop-in replacement or addition to your existing setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAt-a-Glance Monitoring:\u003c\/strong\u003e Individual LED indicators for each channel allow you to confirm power levels instantly without disturbing your imaging session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Purpose Outputs:\u003c\/strong\u003e Beyond dew control, the regulated 12V PWM outputs can be used to adjust the speed of telescope fans or control the brightness of a calibration flat panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Pegasus Astro DewZap require?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe DewZap operates on a \u003cstrong\u003e12V-13.8V DC\u003c\/strong\u003e power source. You can use a portable 12V battery pack or a mains AC-to-DC adapter. The power input connector is a standard \u003cstrong\u003e2.1mm center-positive socket\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the DewZap power two large dew straps on my 11\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Each of the DewZap's two channels can supply up to \u003cstrong\u003e5 Amps\u003c\/strong\u003e of current. This is more than sufficient to power large dew straps for primary mirrors, corrector plates, and large objective lenses, allowing you to run a heater on both your main telescope and a large guidescope or secondary mirror cage simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is Pulse Width Modulation (PWM) and why is it important for the DewZap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003ePulse Width Modulation (PWM)\u003c\/strong\u003e is a digital method of controlling power. Instead of reducing voltage (which wastes energy as heat), the DewZap rapidly switches the power on and off. By adjusting the \"on\" time (the duty cycle), it precisely controls the heater's output from 0-100%. This is highly efficient and ensures your heaters receive the full input voltage, making them more effective at preventing dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know how much power the DewZap is sending to each heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe DewZap has a dedicated LED indicator light for each of its two channels. The brightness of the LED corresponds to the power output; it will be dim at low settings and grow brighter as you turn the knob to increase the power towards 100%.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the DewZap work with dew straps from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The DewZap uses industry-standard \u003cstrong\u003eRCA power outlets\u003c\/strong\u003e. As long as your existing dew straps use a male RCA plug and are designed for 12V operation, they will be fully compatible with the DewZap controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the DewZap to control the fans on my Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The PWM output is also suitable for controlling the speed of 12V DC fans. You can connect a fan with an RCA plug to one of the channels and use the knob to adjust its speed for faster or slower mirror cooling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e12V - 13.8V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e2.1mm Centre Positive Socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Outlets\u003c\/td\u003e\n\u003ctd\u003e2 x RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003eUp to 5 Amps per channel (10 Amps total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003ePulse Width Modulation (PWM) Duty Cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e66 mm x 66 mm x 28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDewZap Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDewZap Quick Installation Guide\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Pegasus_Astro_DewZap_Quick_Guide_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/pegasusastro.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":44967643840797,"sku":"PEG-DEWZAP","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-DewZap-Front__88375.1599173137.1280.1280.jpg?v=1684345002"},{"product_id":"pegasus-dewmaster-5-channel-digital-dew-heater-controller","title":"Pegasus DewMaster - 5 Channel Digital Dew Heater Controller","description":"\u003c!-- more --\u003e\n\u003cp\u003e\u003cspan\u003eDewMaster was made for the visual astronomer. Connect up to five dew heaters and control them individually using PWM duty cycle. Full digital operation and a high resolution red film display makes the control of the device quick and simple. Measure consumed Amperes and Input voltage by a glimpse of an eye. Optionally, an external temperature and humidity sensor will let you know the levels of the relative humidity , temperature and dew point. Automatic dew heaters control will let you relax as you know that in case of high levels of humidity your optics will be moisture free!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFive channels, Five RCA outputs for heater attachment\u003c\/h3\u003e\n\u003cp\u003eFive powerful MOSFETs (supporting up to 6 Amps each) will ensure they will feed your dew heaters with all the required power. Mosfet transistors ensures no voltage drops in any of the outputs!\u003c\/p\u003e\n\u003ch3\u003ePulse Width Modulation duty cycle control.\u003c\/h3\u003e\n\u003cp\u003ePWM control will let you reduce your battery’s power consumption.\u003c\/p\u003e\n\u003ch3\u003eOrganic LED display with Red Film\u003c\/h3\u003e\n\u003cp\u003eA 128 x 64 pixel Organic LED (red film) screen is used for the device. It will ensure that your night vision will be unaffected.\u003c\/p\u003e\n\u003ch3\u003eExternal Environment Sensor (optional)\u003c\/h3\u003e\n\u003cp\u003eExternal one (1) meter high resolution temperature \u0026amp; relative humidity calibrated sensor. Know exactly the environment conditions of your location. The sensor can be auto combined with the dew heater outlets to automatically handle the power levels. Leave to the \u003cstrong\u003eDewMaster\u003c\/strong\u003e decide if it is time to turn on your heating elements! You can also monitor the readings of temperature, humidity and dew point in the display screen.\u003c\/p\u003e\n\u003ch3\u003eTwo pass through DC outputs\u003c\/h3\u003e\n\u003cp\u003eTwo 12V outputs let you connect additional equipment with less and shorter cables.\u003c\/p\u003e\n\u003ch3\u003eEasy to Use\u003c\/h3\u003e\n\u003cp\u003eJust push down the knob and choose the desired output. Turn the knob (left or right) to control the duty cycle from 0-100%. Simple as that!\u003c\/p\u003e\n\u003ch3\u003eFull Digital Operation\u003c\/h3\u003e\n\u003cp\u003eThe device is 100% digital operated.\u003c\/p\u003e\n\u003ch3\u003eReverse polarity protection\u003c\/h3\u003e\n\u003cp\u003eThe device was designed to be protected from reverse voltage polarity. No worries if you accidentally reverse connect your power source.\u003c\/p\u003e\n\u003ch3\u003eCompact size\u003c\/h3\u003e\n\u003cp\u003eDimensions: 109mm x 74mm x 25mm , Weight 250 grams\u003c\/p\u003e\n\u003cdiv data-custom-tab=\"\"\u003e\n\u003cp data-custom-tab-title=\"\"\u003eDownloads\u003c\/p\u003e\n\u003cdiv\u003e\u003ca title=\"DewMaster Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/7\/assets\/description_image_Pegasus_DewMaster_Manual.pdf?v=1684344990\" rel=\"noopener\" target=\"_blank\"\u003eDewMaster Manual\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":44967643939101,"sku":"PEG-DEWMSTR","price":301.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-DewMaster-1__44595.1599172035.1280.1280.jpg?v=1684345007"},{"product_id":"pegasus-high-accuracy-digital-temperature-humidity-sensor-for-dewmaster","title":"Pegasus High Accuracy Digital Temperature\/Humidity Sensor for DewMaster","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHigh-accuracy digital temperature sensor\u003c\/li\u003e\n\u003cli\u003eHigh-accuracy digital humidity sensor\u003c\/li\u003e\n\u003cli\u003eProvides real-time environmental data\u003c\/li\u003e\n\u003cli\u003eCompatible with DewMaster and DewMaster2\u003c\/li\u003e\n\u003cli\u003eEssential for automatic dew heater control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eHigh Accuracy Digital Temperature\/Humidity Sensor for DewMaster\u003c\/h2\u003e\n\u003cp\u003eThis High Accuracy Digital Temperature\/Humidity Sensor is the essential environmental input for your Pegasus Astro dew controller. It provides the real-time, precise temperature and humidity data required by the DewMaster or DewMaster2 to accurately calculate the dew point and automatically manage the power to your heater strips. This sensor replaces subjective estimates with hard data, ensuring your optics remain clear from dew without wasting battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHigh-Accuracy Environmental Sensing for Dew Control\u003c\/h3\u003e\n\u003cp\u003eThe core of any automated dew prevention system is accurate data. This sensor delivers precise ambient temperature and relative humidity readings directly to your controller. This allows the DewMaster's algorithm to calculate the exact temperature at which condensation will form on your optics, a critical function for nights with falling temperatures and rising humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Integration with Pegasus Astro Dew Controllers\u003c\/h3\u003e\n\u003cp\u003eDesigned for plug-and-play operation, this sensor is fully compatible with Pegasus Astro dew control systems, including the DewMaster and DewMaster2. It connects directly to the controller's environmental port, immediately feeding it the data needed for automatic dew control modes. This integration eliminates guesswork and allows the controller to intelligently apply just enough power to keep your lenses and mirrors above the dew point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of this Temperature\/Humidity Sensor for my DewMaster?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis sensor provides your Pegasus Astro dew controller with the live, local atmospheric data (ambient temperature and relative humidity) it needs to calculate the current dew point. The controller then uses this information in its automatic modes to adjust the power going to your dew heaters, keeping your optics just above this temperature to prevent condensation from forming.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this sensor compatible with the original Pegasus Astro DewMaster?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this high-accuracy sensor is fully compatible with both the original DewMaster and the newer DewMaster2, as well as other Pegasus Astro controllers that feature an environmental sensor input. It is a direct replacement or upgrade for the sensor included with those units.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere should I place the Temperature\/Humidity Sensor on my telescope rig?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor the most accurate readings of the ambient conditions, position the sensor away from any direct heat sources, such as your laptop exhaust, power bricks, or the dew heaters themselves. A good practice is to let it hang freely from the controller, ensuring it is measuring the air temperature around your telescope, not radiated heat from other equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my DewMaster's automatic mode without this sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The automatic dew control function of the DewMaster and other Pegasus controllers requires real-time data from this environmental sensor to calculate the dew point. Without it, you can only operate the dew heaters in manual mode by setting a fixed power percentage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this sensor help save battery power during a night of imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy providing accurate dew point data, the sensor allows the DewMaster to use its intelligent algorithm to apply only the necessary amount of power to the heaters. In manual mode, users often set the power too high \"just in case,\" which drains field batteries unnecessarily. The automatic function ensures no energy is wasted, extending your imaging time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy old DewMaster sensor is giving erratic readings. Is this the correct replacement?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If your current environmental sensor is damaged or providing incorrect temperature or humidity readings, this is the official, high-accuracy replacement part from Pegasus Astro that will restore full automatic functionality to your dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003ePegasus Astro DewMaster, DewMaster2, and other compatible controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eMeasures ambient temperature and relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHigh Accuracy Digital Temperature\/Humidity Sensor\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/pegasusastro.com\/download\/\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/pegasus-astro-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePegasus Astro 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pegasus Astro","offers":[{"title":"Default Title","offer_id":44967644004637,"sku":"PEG-SENS-DEWMSTR","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Pegasus-DewMaster-Sensor__09148.1599161657.1280.1280.jpg?v=1684345009"},{"product_id":"celestron-dew-shield-dx-for-c9-25-c11","title":"Celestron Dew Shield DX for C9.25 \u0026 C11","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrevents dew formation on 9.25\" and 11\" Schmidt-Cassegrain, EdgeHD, and RASA corrector plates\u003c\/li\u003e\n\u003cli\u003eBlocks stray light to increase image contrast\u003c\/li\u003e\n\u003cli\u003eFlexible Polyethylene construction rolls up for easy storage\u003c\/li\u003e\n\u003cli\u003eFelt-lined interior absorbs moisture and light\u003c\/li\u003e\n\u003cli\u003eSecure Velcro attachment for a custom fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Shield DX for C9.25 \u0026amp; C11\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Shield DX is an essential field accessory for any 9.25\" or 11\" Celestron optical tube, constructed from a durable 3.556mm thick Polyethylene material. Measuring 431mm by 1066.8mm, this 1.8 lb shield effectively prevents moisture from condensing on your corrector lens and blocks stray light from degrading your images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFelt-Lined Interior for Maximum Contrast\u003c\/h3\u003e\n\u003cp\u003eThe interior surface of the Dew Shield DX is lined with felt, which serves two critical functions. It absorbs stray, off-axis light from external sources like streetlights or moonlight, preventing it from entering the optical tube and washing out faint details. This lining also absorbs excess moisture, further managing dew and ensuring your views of deep-sky objects remain dark and full of contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Custom Fit for 9.25\" and 11\" OTAs\u003c\/h3\u003e\n\u003cp\u003eDesigned for a perfect fit, the Dew Shield DX wraps securely around both 9.25-inch and 11-inch Schmidt-Cassegrain, EdgeHD, and RASA optical tubes. The attachment is handled by robust Velcro strips, allowing you to adjust the tension for a non-slip grip. Extra padding along the attachment edge ensures a solid connection without scratching your telescope's finish, and a deep, wide dovetail cutout accommodates rails up to 4 inches wide.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew Shield DX fit my non-Celestron 11\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed specifically for Celestron 9.25\" and 11\" optical tubes, the flexible Polyethylene construction and adjustable Velcro closure may allow it to fit other brands. However, a perfect fit cannot be guaranteed, particularly around the dovetail bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew Shield DX help with imaging the Orion Nebula (M42) from my backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a bright object like the Orion Nebula (M42) from a light-polluted area, the felt-lined interior of the Dew Shield DX is critical. It blocks stray light from local sources from hitting your corrector plate, which darkens the background sky in your images and significantly improves the contrast between the nebula's faint outer structures and the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew Shield DX rigid enough to support a dew heater strap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 3.556mm thick Polyethylene material is strong enough to support the weight of a dew heater strap wrapped around the optical tube, just behind the corrector plate cell. The shield then fits over the top of the heater for maximum efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I store the Celestron Dew Shield DX after an observing session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe shield is designed for portability. After your session, simply detach it from your telescope, unroll it flat, and then roll it up tightly for compact storage. Its 1.8 lb weight makes it easy to transport with the rest of your gear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Dew Shield DX on my 11\" RASA telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Dew Shield DX is compatible with the 11\" Rowe-Ackermann Schmidt Astrograph (RASA). The wide dovetail cutout is specifically designed to accommodate the 4\" CGE-style dovetail bar found on larger Celestron OTAs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the felt lining require any special care?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe felt lining is very low-maintenance. If it becomes damp after a dewy night, simply allow it to air dry completely before rolling it up for storage to prevent mildew. If it gets dusty, you can clean it gently with a lint roller or a soft brush.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePE - Polyethelene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.8 lbs (0.81 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e431mm x 1066.8mm x 3.556mm (17\" x 42\" x .14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Shield DX for C9.25 \u0026amp; C11\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967645020445,"sku":"CEL-94016","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Shield-DX-C9-25-C11-94016-1__48390.1602712164.1280.1280.jpg?v=1684345172"},{"product_id":"sbig-replacement-desiccant-plug","title":"SBIG Replacement Desiccant Plug","description":"\u003c!-- more --\u003e\u003cdiv\u003eReplacement Desiccant Plugs for SBIG camera models. User-replaceable desiccant helps avoid unnecessary returns for service.\u003c\/div\u003e","brand":"SBIG","offers":[{"title":"Aluma","offer_id":44967710589213,"sku":"DL-DESICCANT-AL","price":267.0,"currency_code":"CAD","in_stock":true},{"title":"STX-16803\/STX-6303\/STX-9000 and older STL Cameras","offer_id":44967710621981,"sku":"DL-DESICCANT-STX-STL","price":211.0,"currency_code":"CAD","in_stock":true},{"title":"STXL-11002M and STXL-6303","offer_id":44967710654749,"sku":"DL-DESICCANT-STXL","price":295.0,"currency_code":"CAD","in_stock":true},{"title":"STF-8300's\/STF-8050's\/STF-4070's\/HERMES-8300's\/OSIRIS-8050's and REMOTEHDSTX","offer_id":44967710687517,"sku":"DL-DESICCANT-STF","price":211.0,"currency_code":"CAD","in_stock":true},{"title":"STF-8300's\/STF-8050's\/STF-4070's","offer_id":44967710720285,"sku":"DL-DESICCANT-STF-EN","price":295.0,"currency_code":"CAD","in_stock":true},{"title":"STT-1603\/3200\/8300","offer_id":44967710753053,"sku":"DL-DESICCANT-STT","price":211.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SBIG-Replacement-Dessicant-Plug-STL__56083.1600282389.1280.1280.jpg?v=1684345564"},{"product_id":"dew-not-heater-strip-965-eyepiece","title":"Dew-Not Heater Strip - .965\" Eyepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits .965\" Eyepieces and 1\" Finderscopes\u003c\/li\u003e\n\u003cli\u003eHeater Element Length: 3.5\"\u003c\/li\u003e\n\u003cli\u003eTotal Strip Length: 4.5\" (11.4cm)\u003c\/li\u003e\n\u003cli\u003ePower Requirement: 12V DC, 2.1W\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 0.18 A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - .965\" Eyepiece (DN001)\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip DN001 provides reliable dew prevention for .965\" eyepieces and 1\" finderscopes by delivering 2.1W of power from a standard 12V DC source. Its 4.5\" total length incorporates a 3.5\" thick-film heating element that draws a minimal 0.18A of current. This design ensures your small optics remain clear without localized hot spots that can degrade views.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: 3.5\" of Uniform Warmth at 2.1W\u003c\/h3\u003e\n\u003cp\u003eUnlike resistance wire heaters that can create uneven hot spots, this Dew-Not strip uses patented thick-film technology to distribute heat uniformly across its 3.5\" element. This even application of its 2.1W output gently warms the optic just above the dew point, preserving image contrast without introducing tube currents or optical distortion. The result is a clear, stable view, even as humidity levels rise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 4.5\" Insulated Strip for .965\" Eyepieces\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for small optics, the DN001's 4.5\" overall length provides a secure fit on .965\" eyepieces and small finderscopes. The exterior is cloth-covered with foam insulation, directing heat inward toward the optical barrel for maximum efficiency. A durable Velcro closure allows for a snug, flexible fit that stays in place throughout your observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Power and 0.18A Draw for Standard Controllers\u003c\/h3\u003e\n\u003cp\u003eOperating on a standard 12V DC input, the Dew-Not heater is fully compatible with common dew controller systems. Its low 0.18A current draw allows you to power multiple heaters from a single controller without overloading your field battery. The integrated power cord terminates in a standard RCA-style plug for a secure connection to your dew control hub.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat optics will the Dew-Not DN001 heater strip fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eDew-Not DN001\u003c\/strong\u003e is designed for small-diameter optics. It is a perfect fit for vintage or specialized \u003cstrong\u003e.965\" eyepieces\u003c\/strong\u003e and can also be used effectively on most \u003cstrong\u003e1\" finderscopes\u003c\/strong\u003e or small guide scopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not .965\" heater strip use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater operates on \u003cstrong\u003e12V DC\u003c\/strong\u003e and consumes \u003cstrong\u003e2.1 watts\u003c\/strong\u003e of power. This translates to a very low current draw of just \u003cstrong\u003e0.18 amps\u003c\/strong\u003e, making it highly efficient and easy on your portable power supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a controller for the Dew-Not DN001 heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a dew heater controller is required. The heater strip runs at full power if connected directly to a 12V source, which is often too much heat. A controller allows you to adjust the power output to provide just enough warmth to prevent dew, conserving battery life and protecting your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI use a classic 60mm refractor with .965\" eyepieces. Will this heater work for me?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003eDew-Not DN001\u003c\/strong\u003e is the ideal choice for this setup. Its 4.5\" length is perfectly sized for the small barrel of a .965\" eyepiece, and its gentle 2.1W output is sufficient to keep the eyepiece clear on a humid night without introducing any heat-related image distortion in your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between the Dew-Not heater and cheaper wire-based heaters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the heating technology. The \u003cstrong\u003eDew-Not DN001\u003c\/strong\u003e uses a \u003cstrong\u003ethick-film element\u003c\/strong\u003e that heats evenly across its entire 3.5\" surface. Many cheaper alternatives use a thin resistance wire, which can create concentrated hot spots and uneven heating, potentially affecting optical performance and risking burnout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 4.5\" Dew-Not strip on a small guide camera lens like a 50mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this strip is designed for eyepieces, its 4.5\" length could potentially wrap around the barrel of a small C-mount or M42 guide camera lens. Measure the circumference of your lens barrel; if it is close to 4.5\", the Velcro closure should provide a secure fit to prevent dew from forming on the guide camera's front element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Optics\u003c\/td\u003e\n\u003ctd\u003e0.965\" Eyepieces, 1\" Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e4.5\" (11.4cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e3.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.18 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967733854493,"sku":"DN001","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__98919.1606104165.1280.1280.png?v=1684345671"},{"product_id":"dew-not-heater-strip-1-25-eyepiece","title":"Dew-Not Heater Strip - 32mm Guide Scope or 1.25\" Eyepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 1.25\" Eyepieces and small finderscopes\u003c\/li\u003e\n\u003cli\u003eTotal Strip Length: 6.5\" (16.5cm)\u003c\/li\u003e\n\u003cli\u003eHeater Element Length: 5.5\"\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 3.1W at 12V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 0.25 A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eDew-Not Heater Strip - 32mm Guide Scope or 1.25\" Eyepiece\u003c\/h2\u003e\n      \u003cp\u003eThe Dew-Not Heater Strip DN002 prevents dew on your 1.25\" eyepieces with a 6.5\" long strip containing a 5.5\" heating element. Operating at 12V DC, it draws just 0.25 A to produce 3.1 W of gentle, even heat, ensuring your optics remain clear all night.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e5.5\" Thick-Film Heater: Uniform Heat, No Hot Spots\u003c\/h3\u003e\n      \u003cp\u003eUnlike common resistance wire heaters that can create localized hot spots, this Dew-Not strip uses a thick-film heater technology. The 5.5\" heating element distributes warmth evenly across a large surface area, which eliminates the risk of damaging sensitive eyepiece coatings or creating tube currents while efficiently preventing dew formation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e6.5\" Strip for 1.25\" Eyepieces\u003c\/h3\u003e\n      \u003cp\u003eWith a total length of 6.5\", this strip is sized specifically for 1.25\" eyepieces and small guide scopes or finders. It features a flexible cloth covering, external foam insulation to direct heat inward, and a secure Velcro closure for a snug fit. The integrated power cord terminates in a standard RCA jack, making it compatible with most common dew heater controllers.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of controller do I need for the Dew-Not DN002 heater strip?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Dew-Not DN002 uses a standard male \u003cstrong\u003eRCA-style plug\u003c\/strong\u003e and operates on \u003cstrong\u003e12V DC\u003c\/strong\u003e. It is compatible with virtually any dew controller system that uses RCA outputs, such as those from Dew-Not, Kendrick, Thousand Oaks, and others. You will need a controller to regulate the 3.1 W power output.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 6.5\" Dew-Not DN002 fit on my 50mm finder scope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the 6.5\" length is too short to wrap around the main body of a 50mm finder scope. This model, the DN002, is designed for the smaller diameter of \u003cstrong\u003e1.25\" eyepieces\u003c\/strong\u003e or finderscopes with a similar barrel size (around 32mm). For a 50mm finder, you would need a longer Dew-Not strip.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew-Not DN002 prevent overheating my 1.25\" eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater uses a thick-film element that distributes heat evenly rather than concentrating it in a thin wire. This, combined with its low power draw of \u003cstrong\u003e3.1 W\u003c\/strong\u003e, provides a very gentle and uniform warmth that is just enough to keep the optic above the dew point without applying excessive heat that could cause thermal issues or damage.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the heating element only 5.5\" long on a 6.5\" strip?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is by design. The \u003cstrong\u003e5.5\" heating element\u003c\/strong\u003e is centered within the \u003cstrong\u003e6.5\" total strip length\u003c\/strong\u003e. The extra inch of material provides a non-heated overlap area for the Velcro closure, ensuring a secure fit without placing the heating element directly on top of itself, which could cause a hot spot.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Dew-Not DN002 on my Tele Vue 24mm Panoptic eyepiece during a humid night?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The DN002 is perfectly sized for 1.25\" eyepieces like the Tele Vue 24mm Panoptic. Wrapping the 6.5\" strip around the main barrel will provide the 3.1 W of power needed to keep the eye lens clear, even in dewy conditions, allowing you to enjoy wide-field views without interruption.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes this Dew-Not heater different from cheaper resistance wire models?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary difference is the heating technology. \u003cstrong\u003eDew-Not uses a patented thick-film element\u003c\/strong\u003e that provides superior, even heat distribution. Resistance wire heaters concentrate heat along a single wire, which can lead to inefficient heating and potential burnouts. Dew-Not strips are also made in the USA with high-quality materials for greater durability and reliability in the field.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN002\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFits Optics\u003c\/td\u003e\n\u003ctd\u003e1.25\" Eyepieces, 32mm Guide Scopes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e6.5\" (16.5cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e5.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e3.1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDew-Not 6.5\" Heater Strip for 1.25\" Eyepieces\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967733920029,"sku":"DN002","price":42.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__34305.1606104111.1280.1280.png?v=1684345673"},{"product_id":"dew-not-heater-strip-2-eyepiece","title":"Dew-Not Heater Strip - 50mm Guide Scope or 2\" Eyepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e8\" Active Heating Element Length\u003c\/li\u003e\n\u003cli\u003eDesigned for 2\" Eyepieces and 50mm Guide Scopes\u003c\/li\u003e\n\u003cli\u003e4.2W Power Consumption\u003c\/li\u003e\n\u003cli\u003e0.35A Current Draw at 12V DC\u003c\/li\u003e\n\u003cli\u003e9.0\" Total Strip Length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eDew-Not Heater Strip - 50mm Guide Scope or 2\" Eyepiece\u003c\/h2\u003e\n      \u003cp\u003eThe Dew-Not DN003 heater strip delivers a continuous 4.2W of thermal power from a standard 12V DC source to prevent dew formation on 2\" eyepieces and 50mm guide scopes. Its 8\" heating element is sized for a precise fit, drawing a minimal 0.35A of current to keep your optics clear all night without significantly impacting your field battery's runtime.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e8-Inch Heating Element for 2\" Eyepieces \u0026amp; 50mm Finders\u003c\/h3\u003e\n      \u003cp\u003eThis heater's design centers on its 8\" active heating element, contained within a total strip length of 9.0\". This specific length ensures a snug, efficient wrap around the barrels of most 2\" eyepieces and standard 50mm finderscopes or guide scopes. By applying gentle, continuous warmth directly to the optical housing, the DN003 strip prevents the glass surfaces from cooling below the dew point, ensuring your view remains clear and sharp even as temperatures drop.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eEfficient 4.2W Power Draw at 12V DC\u003c\/h3\u003e\n      \u003cp\u003eOperating on the standard 12V DC used by all astronomical power systems, the DN003 is engineered for efficiency. The 4.2W power rating translates to a low current draw of just 0.35A, placing a minimal load on your power tank. This allows you to run multiple heaters for your eyepiece, guide scope, and main telescope simultaneously without risking premature power loss during a long imaging session.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Dew-Not DN003 heater on my 2\" eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstallation is straightforward. Wrap the \u003cstrong\u003eDew-Not DN003\u003c\/strong\u003e strip around the main barrel of your 2\" eyepiece, typically just below the eyecup. The strip has a built-in elastic and Velcro attachment to hold it securely in place. Ensure it makes good contact with the eyepiece body for effective heat transfer, then plug the RCA-style connector into your dew controller.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 4.2W power of the Dew-Not DN003 be enough for very humid nights?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, for its intended targets. The \u003cstrong\u003e4.2W\u003c\/strong\u003e output is specifically calibrated for the small thermal mass of eyepieces and 50mm scopes. It provides enough heat to raise the optic's temperature a few degrees above ambient, which is all that is needed to prevent dew, even in high humidity. It is not designed for larger optics like a primary telescope objective.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I plug the Dew-Not DN003 directly into a 12V battery?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, you should not. The Dew-Not DN003 heater is designed to be used with a dew controller. Plugging it directly into a \u003cstrong\u003e12V DC\u003c\/strong\u003e source would run it at 100% power continuously, which can be inefficient and unnecessary. A controller allows you to adjust the power output based on conditions, saving battery life.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the 8\" element length and 9.0\" strip length on the DN003?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e8\" Dew Strap Heater Element Length\u003c\/strong\u003e refers to the portion of the strip that actively produces heat. The total \u003cstrong\u003eStrip Length of 9.0\"\u003c\/strong\u003e includes the non-heating portions at the ends, which contain the Velcro and elastic for securing the strip to your equipment.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a TeleVue 55mm Plössl on my SCT in Florida. Is the Dew-Not DN003 the right size?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, the \u003cstrong\u003eDew-Not DN003\u003c\/strong\u003e is an excellent fit for large 2\" eyepieces like the TeleVue 55mm Plössl. Its 8\" heating element provides complete coverage around the eyepiece barrel, which is critical in the high-humidity environment of Florida to keep that large top element clear for wide-field views.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not DN003 fit my 50mm ZWO guide scope for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. The \u003cstrong\u003eDew-Not DN003\u003c\/strong\u003e is perfectly sized for standard 50mm guide scopes, including those from ZWO. Keeping the guide scope objective dew-free is critical for maintaining good guiding performance throughout a long imaging session on targets like the Orion Nebula (M42), and this strip's low \u003cstrong\u003e0.35A\u003c\/strong\u003e draw won't strain your power budget.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eKnown Fit\u003c\/td\u003e\n\u003ctd\u003e2\" Eyepieces, 50mm Guide Scopes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e9.0\" (229mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e0.35 A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN003\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip (DN003)\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967733952797,"sku":"DN003","price":43.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__18757.1606104176.1280.1280.png?v=1684345674"},{"product_id":"dew-not-heater-strip-3-scope","title":"Dew-Not Heater Strip - 3\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 3\" Telescope OTAs\u003c\/li\u003e\n\u003cli\u003e13.0\" (33.0cm) Strip Length\u003c\/li\u003e\n\u003cli\u003e12\" Heating Element Length\u003c\/li\u003e\n\u003cli\u003eDraws 0.50A at 12V DC (6W)\u003c\/li\u003e\n\u003cli\u003eStandard RCA Jack Connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip for 3\" Scopes\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 3\" Scopes is engineered to deliver consistent, reliable dew prevention using a 12\" long thick-film heating element housed in a 13.0\" insulated strip. Operating at 12V DC, this heater draws just 0.50 amps (6W) to gently warm your optics, ensuring your views remain clear throughout the night. Its patented design provides even heat distribution, eliminating the dew that can end an observing session prematurely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: 66% Surface Area for Even Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional heaters that use a single resistance wire, the Dew-Not strip utilizes a thick-film heating element where 66% of the surface area actively radiates heat. This design produces remarkably even warmth across the entire 12\" element length. The result is uniform temperature elevation that prevents dew from forming without creating localized hot spots or optical distortions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt for 3\" Scopes: 13\" Length and 12V Operation\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 13.0\", this Dew-Not strip is sized specifically for 3\" telescope optical tubes, providing full coverage for the objective lens cell. The exterior is cloth-covered with foam insulation to direct heat inward toward the optics, maximizing efficiency and minimizing power consumption. A strong Velcro closure ensures a snug, secure fit that won't slip during use, while the 6-foot cord and standard RCA jack offer plug-and-play compatibility with most 12V dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDew-Not vs. Resistance Wire: A 20+ Year Patented Design\u003c\/h3\u003e\n\u003cp\u003eThe core technology in the Dew-Not heater is a significant departure from older resistance-wire designs, which are prone to burnouts and uneven heating. Backed by over 30 patents and more than 20 years of continuous refinement, the thick-film element offers superior durability and reliability. This robust, USA-made construction ensures your investment is protected against the common failure points of lesser dew heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know the Dew-Not DN004 will fit my 3\" refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eDew-Not DN004\u003c\/strong\u003e has a total strip length of \u003cstrong\u003e13.0\" (33.0cm)\u003c\/strong\u003e, which is specifically designed to wrap around the outside diameter of a typical 3\" telescope's dew shield or main tube. You can confirm the fit by measuring the circumference of your telescope where you plan to place the heater; if it's around 13 inches, this strip will provide a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for this Dew-Not heater strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater strip uses a standard male \u003cstrong\u003eRCA jack\u003c\/strong\u003e and operates on \u003cstrong\u003e12V DC\u003c\/strong\u003e. It is compatible with virtually any dew controller system from major brands that use RCA-style outputs. The strip draws only \u003cstrong\u003e0.50A\u003c\/strong\u003e, making it a low-load addition to any multi-channel dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the heating element (12\") shorter than the strip itself (13.0\") on the Dew-Not DN004?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e12\" heating element\u003c\/strong\u003e is the active portion of the strip. The overall \u003cstrong\u003e13.0\" length\u003c\/strong\u003e includes the non-heating portion of the fabric strip that contains the Velcro closure. This design ensures that when you wrap the strip around your scope, only the heating element is in contact with the optical tube, and the overlap for the Velcro does not cause excessive heat buildup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Dew-Not DN004 on my 50mm finderscope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the Dew-Not DN004 is too large for a 50mm (approx. 2\") finderscope. A 50mm scope has a circumference of roughly 6.2 inches. The 13.0\" length of this strip would be far too long to fit snugly. You should select a smaller dew heater strip designed for finderscopes or large eyepieces for a proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not DN004 draw at 12V?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN004 is highly efficient. At \u003cstrong\u003e12V DC\u003c\/strong\u003e, it draws a current of \u003cstrong\u003e0.50 amps\u003c\/strong\u003e, consuming \u003cstrong\u003e6 watts\u003c\/strong\u003e of power. This low power draw makes it an excellent choice for field use where battery life is a primary concern.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Dew-Not heater different from cheaper resistance wire types?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the \u003cstrong\u003ethick-film heating element\u003c\/strong\u003e. Unlike a single, fragile wire, this design features a broad, heat-emitting surface that covers 66% of the element's area. This provides more even heat distribution, eliminates hot spots that can affect optics, and is far more durable and resistant to the burnouts that commonly plague resistance wire heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e13.0\" (33.0cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003e3\" Telescopes \/ OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip - 3\" Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734018333,"sku":"DN004","price":48.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__21102.1614045997.1280.1280.png?v=1684345676"},{"product_id":"dew-not-heater-strip-4-scope","title":"Dew-Not Heater Strip - 4\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 15.4\" (39 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 4\" Telescope OTAs and Dew Shields\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 7.3 Watts at 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Draw:\u003c\/strong\u003e 0.61 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 6' Cord with Molded RCA Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 4\" Scope (DN005)\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 4\" telescopes delivers reliable dew prevention using a patented thick-film design that applies heat across 66% of its 15.4\" surface area. Operating at 12V DC, this strip provides 7.3 W of power with a minimal 0.61 A current draw, ensuring your field battery lasts through long nights. Unlike resistance-wire heaters, this US-made strip generates uniform warmth to keep optics clear without creating hot spots or tube currents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: 66% Surface Area for Uniform Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eDew-Not heaters replace failure-prone resistance wires with a patented thick-film element where 66% of the strip's surface radiates heat. This design eliminates the localized hot spots and potential burnouts common in wire-based heaters. The result is a gentle, evenly distributed warmth that raises your optic's temperature just above the dew point, preventing condensation without introducing image-degrading tube currents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField-Ready Design: 15.4\" Length and 7.3W Power Draw\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for 4\" telescopes, the 15.4\" strip wraps securely around dew shields and main tubes using a durable Velcro closure. An outer layer of foam insulation directs heat inward toward the optics, maximizing efficiency and minimizing the 7.3 W power draw. The integrated 6-foot cord and standard RCA plug provide ample length and compatibility with virtually all common 12V dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Dew-Not DN005 heater different from resistance wire heaters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eDew-Not DN005\u003c\/strong\u003e uses a thick-film heating element that covers 66% of the strip's surface. This provides \u003cstrong\u003esuperior, even heat distribution\u003c\/strong\u003e and eliminates the risk of hot spots or burnouts that can occur with single-wire heaters. This method is more efficient and safer for your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 15.4\" Dew-Not heater strip fit my 4\" refractor's dew shield?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003e15.4\" (39 cm) length\u003c\/strong\u003e is specifically calculated to wrap around the circumference of most 4\" class telescope dew shields and optical tubes, including popular refractors and Maksutov-Cassegrains. The Velcro closure allows for a snug, secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of controller do I need for the Dew-Not DN005 heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis Dew-Not heater strip uses a standard \u003cstrong\u003emolded RCA jack\u003c\/strong\u003e and is designed to work with any 12V DC dew controller that uses RCA-style outputs. This includes controllers from major brands like Kendrick, Thousand Oaks Optical, and DewBuster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 4\" heater draw from a field battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe strip consumes \u003cstrong\u003e7.3 watts\u003c\/strong\u003e of power, which translates to a current draw of \u003cstrong\u003e0.61 amps\u003c\/strong\u003e at 12V. This is a very efficient power draw, allowing you to run the heater for many hours on a typical portable astronomy battery without significant drain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is even heat important for my 4\" telescope's optics?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEvenly distributing gentle heat is critical for maintaining high-resolution views. Hot spots from wire heaters can create localized air currents (tube currents) inside your telescope, which distort the light path and soften fine details on planets like Jupiter or close double stars. The Dew-Not's uniform heating prevents this, preserving the crisp images your 4\" scope is capable of.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Dew-Not DN005 heater require any special setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, setup is simple. Wrap the strip around your telescope's dew shield or main tube, secure it with the built-in Velcro, and plug the 6' cord's RCA jack into your 12V dew controller. There are no other components to assemble.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Aperture\u003c\/td\u003e\n\u003ctd\u003e4\" Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits OTA Models\u003c\/td\u003e\n\u003ctd\u003e4\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e15.4\" (39 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e15.4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e7.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.61 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip for 4\" Scope with 6' Cord\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734247709,"sku":"DN005","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__80880.1606104195.1280.1280.png?v=1684345678"},{"product_id":"dew-not-heater-strip-5-scope","title":"Dew-Not Heater Strip - 5\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 5\" Telescopes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Strip Length:\u003c\/strong\u003e 16.75\" (42.5cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Element Length:\u003c\/strong\u003e 15.75\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 7.9W at 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Draw:\u003c\/strong\u003e 0.66A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e Thick-Film Heater\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 5\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 5\" scopes delivers 7.9 watts of consistent, dew-preventing power from a standard 12V DC source. Its 16.75\" overall length houses a 15.75\" thick-film heating element, drawing a minimal 0.66 amps to keep your optics clear through the dampest observing nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick Film Heating: 15.75\" of Uniform Warmth\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional resistance-wire heaters that can create hot spots, this Dew-Not strip uses patented thick-film technology. With 66% of its surface area emitting heat across the 15.75\" element, it provides exceptionally even thermal distribution, gently raising your optics' temperature just above the dew point without risk of burnouts or damaging your equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField-Ready Design: 16.75\" Insulated Strip for 5\" Scopes\u003c\/h3\u003e\n\u003cp\u003eEngineered for reliability, the 16.75\" strip is constructed with a durable cloth cover and an outer layer of foam insulation. This design directs all the generated warmth toward your telescope's optical tube, maximizing efficiency and minimizing power loss to the cold night air. A secure Velcro closure ensures a snug fit on any 5\" OTA, and the attached 6-foot cord with a molded RCA jack connects to all standard dew controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEfficient 7.9W Power Draw at 12V DC\u003c\/h3\u003e\n\u003cp\u003eOperating on a standard 12V DC power supply, this heater is optimized for low power consumption. The 7.9-watt output draws only 0.66 amps, placing a minimal load on your field battery while providing ample power to prevent dew formation. This efficiency ensures your power tank lasts longer, allowing for extended imaging or observing sessions without interruption.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if the Dew-Not DN006 will fit my 5\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN006 is specifically designed for 5\" aperture telescopes. Its 16.75\" length is calculated to wrap perfectly around the optical tubes and dew shields of common 5\" instruments like refractors, Maksutov-Cassegrains, and Schmidt-Cassegrains. The Velcro closure allows for a secure and adjustable fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Dew-Not heater different from cheaper resistance wire dew straps?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the \u003cstrong\u003ethick-film heating element\u003c\/strong\u003e. Traditional straps use a thin wire that can create uneven hot spots and is prone to breaking. The Dew-Not's solid-state element distributes heat evenly across its entire 15.75\" surface, leading to greater efficiency, reliability, and safety for your telescope's optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply do I need for this 5\" Dew-Not heater strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003e12V DC power source\u003c\/strong\u003e, such as a portable astronomy power tank or a compatible AC adapter. The heater connects via a standard RCA-style plug to a dew controller (sold separately), which then connects to your power supply. The heater itself cannot be plugged directly into a power source without a controller to regulate the output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 5\" Maksutov-Cassegrain. Is the Dew-Not DN006 the right size for its corrector plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the ideal size. For a 5\" Maksutov-Cassegrain, you should wrap the 16.75\" Dew-Not strip around the main optical tube, directly behind the corrector lens cell. This placement warms the entire cell, which in turn keeps the glass corrector plate just above the dew point, preventing condensation from forming.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 7.9W power draw of the Dew-Not heater drain my field battery while imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 7.9W (0.66A) draw is very efficient and represents a small load on most astronomy power tanks. For a typical 17 amp-hour battery, this heater alone could run for over 25 hours. When combined with a mount and camera, it's a minimal addition to your total power budget, allowing for a full night of imaging without concern for premature battery drain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the heating element (15.75\") shorter than the total strip length (16.75\") on the Dew-Not DN006?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extra inch of length on the 16.75\" strip accommodates the robust Velcro closure system. This non-heated section allows the strap to overlap for a secure fit on your 5\" telescope without placing any heating elements within the Velcro material itself, ensuring durability and a safe electrical connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Models\u003c\/td\u003e\n\u003ctd\u003e5\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e16.75\" (42.5cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Element Length\u003c\/td\u003e\n\u003ctd\u003e15.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e7.9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.66 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734313245,"sku":"DN006","price":62.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__26639.1606104206.1280.1280.png?v=1684345679"},{"product_id":"dew-not-heater-strip-6-scope","title":"Dew-Not Heater Strip - 6\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eTotal Length: 20.5\" (52.1cm)\u003c\/li\u003e\n\u003cli\u003eDesigned for: 6\" Telescopes\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 9.6 Watts at 12V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 0.80 Amps\u003c\/li\u003e\n\u003cli\u003eConnection: Long Cord with RCA Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 6\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 6\" scopes delivers 9.6 watts of consistent heat from a 12V DC source to prevent dew formation on your optics. Drawing only 0.80 amps, this 20.5\" strip features a 19.5\" thick-film heating element that provides more uniform warmth than traditional resistance-wire designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: 9.6W of Even, Efficient Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eUnlike common resistance wire heaters that can create hot spots, this Dew-Not strip uses a patented thick-film heating element made in the USA. With a large percentage of its surface area actively emitting heat, it distributes the 9.6 watts of power evenly across your telescope's optical tube.\u003c\/p\u003e\n\u003cp\u003eThis superior design eliminates the risk of burnouts and ensures your optics are warmed gently and uniformly, maintaining thermal stability while keeping dew at bay. The exterior is cloth-covered with foam insulation to direct all the heat inward, maximizing efficiency from its 0.80 amp draw.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for 6\" Scopes: A 20.5\" Strip with Secure Velcro Fit\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 20.5 inches (52.1cm), this heater is specifically sized to wrap securely around 6\" telescope optical tubes. The integrated Velcro closure provides a snug, flexible fit that won't slip during an observing session.\u003c\/p\u003e\n\u003cp\u003eThe attached cord provides ample length to reach your power source, terminating in a standard male RCA jack compatible with most dew controller systems. Operating on 12V DC, it integrates seamlessly into any standard field power setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not 6\" heater work on my Celestron 6\" SCT or my Explore Scientific AR152 refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 20.5\" length is ideal for 6\" (152mm) diameter optical tubes. It will fit a Celestron 6\" SCT perfectly. For the AR152, you would typically measure the circumference of the dew shield where you plan to place the strip to ensure a good fit, but this model is designed for that aperture class.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a portable 12V power tank. How long will the Dew-Not DN007 run before draining it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN007 draws \u003cstrong\u003e0.80 amps\u003c\/strong\u003e. To calculate runtime, divide your power tank's capacity (in Amp-hours) by 0.80. For example, a 17Ah battery would power the strip for over 21 hours (17 \/ 0.80 = 21.25), assuming the heater is running at 100% power. Your dew controller will likely cycle it, extending battery life even further.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between the Dew-Not heater's 20.5\" strip length and the 19.5\" element length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total physical length of the fabric strip, including the Velcro, is \u003cstrong\u003e20.5\"\u003c\/strong\u003e. The actual heating element inside the strip is \u003cstrong\u003e19.5\"\u003c\/strong\u003e long. This design ensures there is non-heated material at the ends for a secure overlap and attachment without stressing the heating element itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I plug the Dew-Not DN007 directly into a 12V car battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While it operates on \u003cstrong\u003e12V DC\u003c\/strong\u003e, the strip does not have a built-in regulator and should not be connected directly to a power source. It is designed to be plugged into a \u003cstrong\u003edew heater controller\u003c\/strong\u003e, which regulates the power output to provide the right amount of heat and prevent overheating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does Dew-Not use a thick-film heater instead of resistance wire?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThick-film technology allows for a much larger heating surface compared to a thin wire. This results in more even heat distribution across your telescope, preventing localized hot spots that can affect optical performance or damage equipment. It's a more reliable and efficient method for dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew-Not DN007 heater strip waterproof?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed to combat dew, which is moisture, and is weather-resistant. The cloth and foam construction can handle the damp conditions of a typical observing night. However, it should not be submerged in water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown to Fit by Aperture\u003c\/td\u003e\n\u003ctd\u003e6\" Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown to Fit by Model\u003c\/td\u003e\n\u003ctd\u003e6\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e20.5\" (52.1cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e19.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e9.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e0.80 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip - 6\" Scope (DN007)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734378781,"sku":"DN007","price":67.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__92051.1606104257.1280.1280.png?v=1684345697"},{"product_id":"dew-not-heater-strip-7-scope","title":"Dew-Not Heater Strip - 7\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater Element Length:\u003c\/strong\u003e 24\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Strip Length:\u003c\/strong\u003e 25.0\" (63.5cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned For:\u003c\/strong\u003e 7\" Telescope OTAs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 11.8 W at 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Molded RCA Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 7\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 7\" Scopes provides 11.8 W of consistent, dew-fighting power, drawing 0.98 A from a standard 12V DC source. This 25.0\" strip wraps securely around 7\" OTAs, utilizing a 24\" thick-film heating element for even thermal distribution and burnout prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: A 24\" Element for Uniform Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eUnlike common resistance-wire heaters that can create damaging hot spots, this Dew-Not strip uses a 24\" thick-film element. This advanced design distributes heat more evenly across its entire surface, gently warming your optics to just above the dew point without risk of localized overheating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for 7\" OTAs: 25\" Strip Length and Insulated Construction\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 25.0\", this heater is sized specifically for the circumference of 7\" telescope optical tubes. The exterior features a durable cloth cover with foam insulation to direct all the warmth inward toward your optics, while a full-length Velcro closure ensures a snug, secure fit that won't slip during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Operation: 11.8W of Efficient Power\u003c\/h3\u003e\n\u003cp\u003eOperating on a standard 12V DC supply, the strip draws a modest 0.98 A to produce 11.8 W of power, enough to keep dew at bay without rapid battery drain. It connects via a durable, molded RCA jack, making it compatible with virtually all commercially available dew heater controllers. Note that a separate dew controller is required to manage power output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if the Dew-Not DN008 heater will fit my 7\" Maksutov-Cassegrain?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Dew-Not DN008 is specifically designed for 7\" OTAs. Its \u003cstrong\u003e25.0\" length\u003c\/strong\u003e will wrap securely around the main tube of a 7\" Maksutov-Cassegrain or other telescope of the same aperture. For absolute certainty, you can measure the circumference of your optical tube; it should be just under 25 inches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the 24\" heater length and the 25.0\" strip length on the Dew-Not DN008?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe active heating element itself is \u003cstrong\u003e24\" long\u003c\/strong\u003e. This element is housed within a slightly longer, \u003cstrong\u003e25.0\" insulated fabric strip\u003c\/strong\u003e. This construction provides a small, non-heated tab at the end for the Velcro closure, ensuring a secure fit without putting stress on the heating element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the Dew-Not 7\" Heater Strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a dew heater controller and a \u003cstrong\u003e12V DC\u003c\/strong\u003e power source, such as a portable astronomy battery pack. The strip itself draws \u003cstrong\u003e0.98 A\u003c\/strong\u003e (consuming \u003cstrong\u003e11.8 W\u003c\/strong\u003e at full power) and connects to the controller via a standard RCA-style plug. The controller then connects to your 12V battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Dew-Not DN008 heater on my 8\" SCT to view the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the DN008 is too short for an 8\" SCT. Attempting to stretch it could damage the strip, and it would not provide sufficient heat coverage. You would need a larger model designed for 8\" telescopes to ensure a proper fit and effective dew prevention for observing targets like the Orion Nebula (M42).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Dew-Not thick-film heater different from a standard wire heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA thick-film heater, like the one in the Dew-Not DN008, has a large, flat heating surface that distributes warmth evenly. Standard resistance-wire heaters concentrate heat along a thin wire, which can lead to uneven heating and potential \"hot spots.\" The thick-film design provides more efficient and safer dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Dew-Not DN008 come with a controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is the heater strip only. It is designed to be used with a separate, compatible dew heater controller, which allows you to adjust the \u003cstrong\u003e11.8 W\u003c\/strong\u003e power output based on ambient temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e24\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Aperture\u003c\/td\u003e\n\u003ctd\u003e7\" Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003e7\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e25.0\" (63.5cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e11.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.98 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip for 7\" Scopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734444317,"sku":"DN008","price":71.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__46346.1606104267.1280.1280.png?v=1684345699"},{"product_id":"dew-not-heater-strip-8-scope","title":"Dew-Not Heater Strip - 8\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 8\" Schmidt-Cassegrain and similar telescopes\u003c\/li\u003e\n\u003cli\u003e30.0\" (76.2cm) strip length with 29\" heating element\u003c\/li\u003e\n\u003cli\u003e14 W power consumption at 12V DC\u003c\/li\u003e\n\u003cli\u003eDraws 1.18 A of current\u003c\/li\u003e\n\u003cli\u003eThick-film heater for even heat distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 8\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 8\" scopes delivers consistent, burnout-free dew prevention by drawing 14 W of power at 12V DC. This 30.0\" strip wraps securely around 8\" OTAs, utilizing a 29\" thick-film heating element to gently warm your optics and keep them clear all night. Its efficient 1.18 A current draw makes it a reliable component of any field power setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: Eliminating Hot Spots in an 8\" System\u003c\/h3\u003e\n\u003cp\u003eUnlike heaters that use a single resistance wire, this Dew-Not strip employs a patented thick-film heating element. This design distributes warmth evenly across the full 29\" element length, preventing the localized hot spots that can degrade views or damage coatings over time. The result is a safer, more uniform thermal gradient on your corrector plate or primary objective.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField-Ready Power: A 14W Draw at 12V DC\u003c\/h3\u003e\n\u003cp\u003eEngineered for standard 12V DC astronomy power systems, this heater draws a modest 14 W (1.18 A). This efficient power consumption helps preserve your portable battery's charge for longer imaging or observing sessions. The strip connects via a standard RCA-style jack, ensuring compatibility with most commercially available dew heater controllers (sold separately).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSized for 8\" OTAs: The 30\" Strip with a 29\" Element\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 30.0\", this strip is correctly sized to wrap around the tube of an 8\" telescope with a secure, insulated fit. The outer cloth and foam layer directs heat inward toward the optics, while the Velcro closure ensures a snug connection that won't slip during the night. The 29\" active heating element is intentionally sized to provide full coverage without wasted energy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 8\" Heater Strip draw?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not heater for 8\" scopes is rated for \u003cstrong\u003e14 W\u003c\/strong\u003e of power and draws \u003cstrong\u003e1.18 A\u003c\/strong\u003e of current when connected to a \u003cstrong\u003e12V DC\u003c\/strong\u003e source. This is a standard power level for a heater of this size, balancing effective dew prevention with efficient use of field battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes this Dew-Not Heater Strip different from cheaper wire-based heaters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is the heating technology. Dew-Not uses a \u003cstrong\u003ethick-film heating element\u003c\/strong\u003e that distributes heat evenly across a large surface. Many other heaters use a simple resistance wire, which can create hot spots and uneven heating. This even distribution provides more reliable dew prevention and is safer for your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 30\" Dew-Not strip fit my Celestron 8\" SCT or Meade 8\" ACF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this heater strip is designed specifically for \u003cstrong\u003e8\" OTAs\u003c\/strong\u003e, including popular Schmidt-Cassegrain (SCT), Maksutov-Cassegrain, and ACF designs. The 30.0\" length provides the necessary circumference to wrap securely around the front cell of these telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of controller do I need for this Dew-Not Heater Strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a dew heater controller that operates on 12V DC and has outputs with standard RCA-style phono jacks. The Dew-Not strip does not have a built-in controller and requires an external unit to regulate its power output. Most astronomy-specific dew controllers are compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Dew-Not heater on my 8\" Dobsonian's secondary mirror cage?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this strip can be used to warm the upper tube assembly or secondary cage of an 8\" truss-tube or solid-tube Dobsonian. Wrapping it around the exterior of the cage can help prevent dew from forming on the secondary mirror by slightly raising the temperature of the surrounding structure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the heating element (29\") shorter than the strip length (30.0\")?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 30.0\" measurement is the total physical length of the fabric strip, including the Velcro closure. The active \u003cstrong\u003eheating element is 29\"\u003c\/strong\u003e long. This design ensures the entire heated portion of the strip is in contact with your telescope tube, with the extra inch of material providing a secure overlap for the Velcro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003e8\" Telescopes \/ OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e30.0\" (76.2cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e29\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e14 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.18 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734509853,"sku":"DN009","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__94910.1606104276.1280.1280.png?v=1684345700"},{"product_id":"dew-not-heater-strip-9-scope","title":"Dew-Not Heater Strip - 9\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 9\" Schmidt-Cassegrain and other OTAs\u003c\/li\u003e\n\u003cli\u003e33\" (83.8cm) Strip Length\u003c\/li\u003e\n\u003cli\u003e32\" Active Heater Element Length\u003c\/li\u003e\n\u003cli\u003e15.5W Power Draw at 12V DC\u003c\/li\u003e\n\u003cli\u003eThick-Film Heater Technology for Even Heat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip for 9\" Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not DN010 Heater Strip delivers 15.5 watts of consistent power to keep your 9\" telescope optics clear of dew. Its 33.0\" (83.8cm) overall length contains a 32\" thick-film heating element, operating efficiently on 12V DC at just 1.30 amps. This American-made heater provides reliable, full-coverage protection for a wide range of 9\" OTAs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdvanced Thick-Film Heating: 15.5W of Even Power\u003c\/h3\u003e\n\u003cp\u003eUnlike traditional wire-based heaters, this Dew-Not strip uses patented thick-film technology. This design dedicates 66% of its surface to emitting heat, drawing 15.5W of power to gently and uniformly warm your optical tube. This process prevents the formation of dew without creating localized hot spots that could affect image stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for 9\" Telescopes: 33\" Length and Insulated Construction\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 33.0 inches, the DN010 strip is sized specifically for 9\" telescope tubes, ensuring a secure fit without excess overlap. The exterior is cloth-covered with foam insulation to direct all heat inward toward the telescope, maximizing efficiency. A durable Velcro closure allows for quick installation and removal, while the 6-foot cord with a molded RCA jack connects to most standard 12V DC dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film vs. Wire Heaters: Why 66% Surface Area Prevents Burnouts\u003c\/h3\u003e\n\u003cp\u003eThe primary advantage of the Dew-Not's thick-film heater is reliability. Resistance wire heaters concentrate all their heat along a thin, delicate wire, making them prone to failure and burnouts. By distributing the heating load over 66% of the strip's surface area, the Dew-Not system eliminates these points of failure, ensuring consistent operation for years.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven Heat Distribution:\u003c\/strong\u003e The broad heating surface prevents hot spots and ensures the entire circumference of your optical tube is warmed evenly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e The absence of a single, fragile resistance wire means the strip can withstand repeated use without the risk of internal breaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Efficiency:\u003c\/strong\u003e The insulated backing ensures the 15.5W of power is directed into your telescope, not wasted into the night air.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know the Dew-Not DN010 will fit my 9\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN010 is specifically designed for 9\" aperture telescopes. With a \u003cstrong\u003etotal strip length of 33.0\"\u003c\/strong\u003e, it provides the correct circumference to wrap securely around the optical tube of most 9\" Schmidt-Cassegrains, Maksutovs, and refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power controller do I need for the Dew-Not 9\" heater strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a standard dew heater controller that provides \u003cstrong\u003e12V DC power\u003c\/strong\u003e and has outputs for RCA-style plugs. The DN010 draws a maximum of \u003cstrong\u003e1.30 amps\u003c\/strong\u003e, which is compatible with virtually all commercially available dew control systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not DN010 cause hot spots or damage my telescope's finish?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The heater uses thick-film technology that distributes heat evenly across 66% of its surface area, a significant improvement over resistance wires. This design produces gentle, uniform warmth at \u003cstrong\u003e15.5 watts\u003c\/strong\u003e, which is highly effective at preventing dew but is not concentrated enough to damage your telescope's finish or optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 9.25\" SCT; will this 9\" Dew-Not heater strip still work effectively?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003e33.0\" length\u003c\/strong\u003e of this strip is generally sufficient to wrap around a 9.25\" SCT, though there will be a small gap where the ends meet. The even heating from the \u003cstrong\u003e32\" element\u003c\/strong\u003e is more than capable of preventing dew formation on the corrector plate, even with this minor gap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not DN010 draw from a field battery on my Celestron C9.25?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN010 has a fixed power consumption. When connected to a \u003cstrong\u003e12V DC\u003c\/strong\u003e source, it will draw \u003cstrong\u003e15.5 watts\u003c\/strong\u003e of power, which equates to a current of \u003cstrong\u003e1.30 amps\u003c\/strong\u003e. During a 5-hour imaging session, this would consume approximately 6.5 amp-hours (Ah) from your battery if run at 100% power, though most controllers will cycle the power, reducing overall consumption.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the 33.0\" strip length and the 32\" heater element length on the Dew-Not DN010?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e33.0\" (83.8cm) measurement is the total physical length\u003c\/strong\u003e of the fabric strip, including the Velcro ends. The \u003cstrong\u003e32\" measurement refers to the length of the active heating element\u003c\/strong\u003e embedded within the strip. This design leaves a small, unheated section at the ends for a secure and cool-to-the-touch closure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Model\u003c\/td\u003e\n\u003ctd\u003e9\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e33.0\" (83.8cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e15.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e1.30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip for 9\" Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734575389,"sku":"DN010","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__43809.1606104287.1280.1280.png?v=1684345702"},{"product_id":"dew-not-heater-strip-10-scope","title":"Dew-Not Heater Strip - 10\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 10\" Telescope OTAs\u003c\/li\u003e\n\u003cli\u003e37\" Active Heating Element Length\u003c\/li\u003e\n\u003cli\u003e38.0\" Total Strip Length\u003c\/li\u003e\n\u003cli\u003e17.8 W Power Consumption at 12V DC\u003c\/li\u003e\n\u003cli\u003eDraws 1.49 A Current\u003c\/li\u003e\n\u003cli\u003eIntegrated 6' Power Cord with RCA Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip for 10\" Scopes\u003c\/h2\u003e\n\u003cp\u003eThe USA-made Dew-Not Heater Strip for 10\" telescopes delivers 17.8 watts of consistent anti-dew power across its full 37\" heating element. Operating at 12V DC and drawing only 1.49 amps, its 38.0\" physical length is perfectly sized to wrap the optical tubes of 10\" OTAs for an entire night of observation without dew formation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 37\" Thick Film Heater for Uniform Dew Control on 10\" Scopes\u003c\/h3\u003e\n\u003cp\u003eThis heater strip uses a patented thick-film technology that provides uniform heat distribution across the 37\" element, eliminating the hot spots and potential burnouts common in inferior resistance wire heaters. The full 38.0\" strip is constructed with a cloth cover, foam insulation on the outer side to direct heat inward, and a robust Velcro closure for a secure, non-slip fit on your 10\" optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEfficient 17.8W Power Draw with Standard Controller Compatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered for field use, the Dew-Not heater draws a modest 1.49 A of current, allowing for long-duration power from portable 12V DC battery packs. The integrated 6-foot power cord terminates in a standard male RCA jack, ensuring plug-and-play compatibility with virtually all commercial dew heater controllers from major brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not DN011 heater fit my 10\" f\/8 Ritchey-Chrétien OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This Dew-Not heater strip has a total length of 38.0 inches, which is designed to securely wrap around the circumference of standard 10\" telescope optical tubes, including Schmidt-Cassegrains, Newtonians, and Ritchey-Chrétiens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 10\" heater draw from a field battery during an imaging session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater draws \u003cstrong\u003e1.49 amps\u003c\/strong\u003e at \u003cstrong\u003e12V DC\u003c\/strong\u003e when operating at full power. When connected to a dew controller that cycles power, the average draw will be lower. A standard 17 amp-hour battery could theoretically power this strip alone for over 11 hours, though actual duration depends on controller settings and other connected equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between the 38-inch strip length and the 37-inch element length on this Dew-Not heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e38.0\" strip length\u003c\/strong\u003e is the total physical length of the fabric band, including the Velcro closure. The \u003cstrong\u003e37\" heater element length\u003c\/strong\u003e refers to the portion of the strip that actively produces heat. This design ensures there is enough non-heating material at the end for a secure overlap and fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew-Not DN011 heater compatible with my existing dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This heater strip uses a standard male RCA-style plug, which is the industry standard for 12V dew control systems. It is compatible with controllers from brands like Celestron, Kendrick, Thousand Oaks, and others that use RCA outputs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose a Dew-Not thick film heater over a cheaper resistance wire type?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUnlike heaters that use a single, thin resistance wire, Dew-Not's thick-film technology distributes heat evenly across a wide surface. This prevents dangerous hot spots that can damage optics or cause uneven tube currents, providing safer and more efficient dew prevention for your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Dew-Not heater strip on my 10\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWrap the strip around the optical tube just behind the front corrector plate or objective lens, with the foam side facing out. Pull the strip snug and fasten it securely using the built-in Velcro. Plug the RCA jack into an available port on your 12V dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Models\u003c\/td\u003e\n\u003ctd\u003e10\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e38.0\" (96.5cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e37\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e17.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.49 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734608157,"sku":"DN011","price":87.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__20573.1606104297.1280.1280.png?v=1684345704"},{"product_id":"dew-not-heater-strip-11-scope","title":"Dew-Not Heater Strip - 11\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 11\" Schmidt-Cassegrain and other large optical tubes\u003c\/li\u003e\n\u003cli\u003eTotal Strip Length: 40.0 inches (101.6cm)\u003c\/li\u003e\n\u003cli\u003eHeating Element Length: 39 inches\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 18.8 Watts at 12V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 1.57 Amps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 11\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 11\" telescopes delivers 18.8 watts of consistent heat across its 40.0-inch length to prevent dew formation on large Schmidt-Cassegrain and similar OTAs. Operating on 12V DC, its 39-inch thick-film heating element draws just 1.57 amps, providing efficient, uniform warmth without hot spots.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 18.8W Thick-Film Advantage: No Hot Spots on Your 11\" Optics\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional resistance-wire heaters that can create uneven hot spots, this Dew-Not strip uses advanced thick-film technology. This design ensures gentle, uniform heat is distributed across the full 39-inch element, protecting your corrector plate from thermal stress while effectively keeping its surface just above the dew point. The 18.8W output is engineered specifically for the large thermal mass of an 11\" optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 40-inch Insulated Strap: Efficient Power and Secure Fit\u003c\/h3\u003e\n\u003cp\u003eThe heater's 40.0-inch total length provides complete coverage around the circumference of an 11\" OTA. A durable cloth exterior, foam insulation, and a secure Velcro closure ensure all 18.8W of power are directed inward toward your optics, not lost to the night air. The integrated 6-foot power cord terminates in a standard male RCA plug, making it compatible with most commercially available dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know the Dew-Not DN012 is the right size for my Celestron 11\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN012 is designed specifically for 11\" OTAs. Its \u003cstrong\u003e40.0-inch strip length\u003c\/strong\u003e is calculated to wrap perfectly around the front cell of telescopes like the Celestron C11 or Meade 11\" SCT, ensuring full coverage of the corrector plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the Orion Nebula (M42) on a humid night with my 11\" scope. Will 18.8W be enough power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, \u003cstrong\u003e18.8 watts\u003c\/strong\u003e is an ideal power level for an 11\" telescope in typical dewy conditions. It provides enough thermal energy to keep the large corrector plate clear without introducing tube currents that could degrade image sharpness. For extremely heavy dew, you would simply increase the duty cycle on your dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power controller do I need for the Dew-Not 11\" heater strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can use any standard 12V DC dew heater controller that has RCA-style output ports. The Dew-Not heater strip comes with a male RCA plug, which is the industry standard for these systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Dew-Not heater's 40\" strip length and 39\" element length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003etotal strip length is 40.0 inches\u003c\/strong\u003e, which includes the fabric and Velcro needed to wrap around the telescope. The actual \u003cstrong\u003eheating element inside is 39 inches long\u003c\/strong\u003e. This design ensures the entire heated surface makes contact with the optical tube for maximum efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a thick-film heater like the Dew-Not DN012 better than a nichrome wire heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThick-film heaters provide a large, flat heating surface that distributes warmth evenly. Traditional nichrome or resistance wire heaters concentrate heat along a thin wire, which can lead to hot spots and uneven performance. The Dew-Not's uniform heating is more efficient and safer for your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 11\" heater strip (DN012) draw from my battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt full power, the heater strip draws \u003cstrong\u003e1.57 amps\u003c\/strong\u003e. When connected to a controller, the actual average draw will be lower depending on the power setting you choose, helping to conserve your field battery throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e11\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Models\u003c\/td\u003e\n\u003ctd\u003e11\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e40.0\" (101.6cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Element Length\u003c\/td\u003e\n\u003ctd\u003e39\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e18.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.57 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip for 11\" Scopes (40\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734804765,"sku":"DN012","price":91.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__58102.1606104305.1280.1280.png?v=1684345706"},{"product_id":"dew-not-heater-strip-12-scope","title":"Dew-Not Heater Strip - 12\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 12\" Telescope OTAs\u003c\/li\u003e\n\u003cli\u003e43.0\" (109.2cm) Strip Length\u003c\/li\u003e\n\u003cli\u003e42\" Active Heater Element Length\u003c\/li\u003e\n\u003cli\u003ePower: 20.2 W at 12V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 1.68 A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 12\" Scope\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip DN013 is engineered for 12\" OTAs, delivering 20.2 W of consistent heat from a standard 12V DC source. This 43.0\" strip contains a 42\" long thick-film heating element that draws 1.68 A to keep your optics clear of condensation all night long. Its patented design provides even heat distribution, eliminating the hot spots common with inferior resistance-wire heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick Film Heating: 20.2W of Even Dew Prevention\u003c\/h3\u003e\n\u003cp\u003eUnlike basic resistance wire heaters, this Dew-Not strip uses advanced thick-film technology where 66% of the surface area actively radiates heat. This design consumes 20.2 W (1.68 A at 12V) to gently warm your optics without creating localized hot spots that can degrade image quality. The result is a more efficient and reliable way to prevent dew, ensuring your observing or imaging session isn't cut short by changing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt for 12\" OTAs: 43\" Length and Secure Velcro Fit\u003c\/h3\u003e\n\u003cp\u003eWith a total length of 43.0 inches, the DN013 is sized specifically for the circumference of 12\" telescope tubes. The durable cloth-covered strip features foam insulation on the outside to direct all heat inward toward your optics, maximizing efficiency. A robust Velcro closure ensures a snug, secure fit that won't slip, while the integrated 6-foot cord with a standard RCA jack plugs directly into most dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Dew-Not DN013 different from cheaper resistance wire heaters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the \u003cstrong\u003ethick-film heating element\u003c\/strong\u003e. Cheaper heaters use a thin wire that can create hot spots and burn out over time. The Dew-Not heater uses a flat, wide element where 66% of the surface radiates heat, providing more even and reliable dew prevention without risk of damaging your equipment or distorting your view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of controller do I need for the Dew-Not 12\" heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a 12V DC dew heater controller with an RCA-style output port. The Dew-Not DN013 is designed to be compatible with industry-standard controllers from major brands. The controller allows you to adjust the power output based on ambient temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 43\" Dew-Not DN013 fit my 12\" f\/8 Dobsonian OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The 43.0\" length is designed to wrap around the approximately 42-inch circumference of a standard 12\" optical tube, with enough overlap for the Velcro to secure it firmly. It's an ideal choice for keeping the primary mirror or upper cage optics of a large Dobsonian free from dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 12\" heater draw from my field battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt 100% power, the Dew-Not DN013 draws \u003cstrong\u003e1.68 Amps\u003c\/strong\u003e. When connected to a dew controller, the actual draw will be lower as the controller cycles the power. A typical deep-cycle battery (e.g., 35Ah) can run this strip for many hours, even alongside other equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew-Not DN013 suitable for my 12\" SCT's corrector plate while imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case for this heater. A 12\" SCT corrector is highly susceptible to dewing up. The 43.0\" strip fits perfectly around the front cell of most 12\" SCTs, and its 20.2 W output is more than sufficient to keep the corrector plate clear through a long imaging session, ensuring your exposures of M31 remain sharp and high-contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the heating element really 42\" long if the strip is 43\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, that is correct. The active heating element inside the strip is \u003cstrong\u003e42\" long\u003c\/strong\u003e. The overall strip length is \u003cstrong\u003e43.0\"\u003c\/strong\u003e to accommodate the cloth and Velcro construction at the ends, ensuring a secure and fully insulated fit around the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Model\u003c\/td\u003e\n\u003ctd\u003e12\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e43.0\" (109.2cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e42\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e20.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.68 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip for 12\" Scopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734870301,"sku":"DN013","price":95.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__05928.1606104315.1280.1280.png?v=1684345709"},{"product_id":"dew-not-heater-strip-14-scope","title":"Dew-Not Heater Strip - 14\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits 14\" Telescopes and Optical Tubes\u003c\/li\u003e\n\u003cli\u003e49.0\" (124.5cm) Total Strip Length\u003c\/li\u003e\n\u003cli\u003e48\" Active Thick-Film Heating Element\u003c\/li\u003e\n\u003cli\u003ePower Requirement: 12V DC, 23.0 W (1.92 A)\u003c\/li\u003e\n\u003cli\u003eIntegrated 6' Power Cord with RCA Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - 14\" Scope\u003c\/h2\u003e\n\u003cp\u003eDesigned specifically for 14\" optical tubes, the Dew-Not DN014 Heater Strip delivers 23.0 W of consistent, evenly distributed heat from its 48\" active heating element. Operating at a standard 12V DC and drawing 1.92 A, the full 49.0\" (124.5cm) strip wraps securely around large OTAs to prevent dew formation on your primary mirror or corrector plate, ensuring your optics remain clear all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heating: 66% Active Surface Area for Even Dew Control\u003c\/h3\u003e\n\u003cp\u003eInstead of using simple resistance wires, this Dew-Not strip employs an advanced thick-film heater technology. With 66% of its surface area actively emitting heat, it provides exceptionally uniform thermal distribution across your optics, eliminating the risk of localized hot spots that can affect image stability or damage coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt for 14\" OTAs: A 49\" Strip with Insulated Design\u003c\/h3\u003e\n\u003cp\u003eThe 49.0\" length is precisely sized to encircle the large barrels of 14\" Schmidt-Cassegrains, Ritchey-Chrétiens, and other large optical tubes. A durable cloth cover, external foam insulation, and a secure Velcro closure ensure all 23.0 W of power are directed into your telescope, not wasted into the night air. The integrated 6' power cord terminates in a standard RCA jack for compatibility with most dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Advantage: Why 66% Surface Heating Beats Resistance Wire\u003c\/h3\u003e\n\u003cp\u003eThe core difference between Dew-Not and conventional dew heaters lies in the heating element itself. Resistance wires concentrate heat along a thin line, creating an uneven temperature gradient and risking burnouts over time. The patented thick-film design generates warmth over a broad surface, ensuring a gentle, consistent temperature just above the dew point for superior reliability and efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply is needed for the Dew-Not 14\" Heater Strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN014 requires a \u003cstrong\u003e12V DC\u003c\/strong\u003e power source capable of supplying at least \u003cstrong\u003e1.92 A\u003c\/strong\u003e of current. It is designed to be used with standard astronomy dew heater controllers, which allow you to regulate the \u003cstrong\u003e23.0 W\u003c\/strong\u003e output based on ambient temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Dew-Not heater fit my Celestron 14\" EdgeHD or Meade 14\" LX200?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003e49.0\" strip length\u003c\/strong\u003e is specifically designed to fit the circumference of large 14\" OTAs, including popular models like the Celestron C14, EdgeHD 1400, and Meade 14\" ACF\/SCT series. The Velcro closure provides a secure, adjustable fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew-Not DN014 heater prevent hot spots on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater uses a patented \u003cstrong\u003ethick-film heating element\u003c\/strong\u003e where 66% of the surface area radiates heat. Unlike traditional resistance wires that concentrate heat in thin lines, this design distributes warmth evenly across the entire \u003cstrong\u003e48\" heating element\u003c\/strong\u003e, preventing any single point from becoming too hot and ensuring uniform dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the Dew-Not Heater Strip on my 14\" SCT all night during a humid imaging session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Dew-Not heater is built for continuous, all-night operation. For best results and power efficiency, you should connect it to a dew controller that uses temperature and humidity sensors to apply just enough power to stay above the dew point, rather than running it at full power continuously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the 49\" strip length and the 48\" element length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total physical length of the fabric and foam strip is \u003cstrong\u003e49.0\" (124.5cm)\u003c\/strong\u003e, which includes the Velcro closure. The actual heat-emitting element inside the strip is \u003cstrong\u003e48\" long\u003c\/strong\u003e. This design ensures the entire heated portion of the strip is in contact with your telescope's optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dew-Not DN014 heater made in the USA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, all Dew-Not dew remover products are proudly manufactured in the USA.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e14\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Models\u003c\/td\u003e\n\u003ctd\u003e14\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e49.0\" (124.5cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Element Length\u003c\/td\u003e\n\u003ctd\u003e48\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e23.0 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.92 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip - 14\" Scope (DN014)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967734935837,"sku":"DN014","price":98.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__56684.1606104324.1280.1280.png?v=1684345710"},{"product_id":"dew-not-heater-strip-16-scope","title":"Dew-Not Heater Strip - 16\" Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 16\" telescope optical tubes\u003c\/li\u003e\n\u003cli\u003eTotal Strip Length: 55.0\" (139.7cm)\u003c\/li\u003e\n\u003cli\u003eHeating Element Length: 54\"\u003c\/li\u003e\n\u003cli\u003ePower Requirement: 25.8W at 12V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Draw: 2.15 A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip for 16\" Scopes\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for 16\" scopes delivers a continuous 25.8 watts of power to keep large corrector plates and primary mirrors clear of condensation. This 55.0\" strip contains a 54\" thick-film heating element that draws 2.15 amps at 12V DC, providing gentle, evenly distributed warmth to prevent dew from ending your observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e25.8W Thick-Film Heating for 16\" Optics\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for large-aperture instruments, this heater provides 25.8 watts of thermal power—enough to raise the optical surface temperature just above the dew point without introducing tube currents. Operating on standard 12V DC power, it ensures your 16\" OTA remains free of dew throughout the night, preserving image contrast and clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 55\" Insulated Strip for Secure Fit and Efficiency\u003c\/h3\u003e\n\u003cp\u003eThis heater strip measures 55.0\" in total length, ensuring full coverage around the circumference of a 16\" optical tube. The outer surface features foam insulation to direct heat inward toward the optics, maximizing efficiency and minimizing power consumption. A robust velcro closure provides a secure, non-slip fit that stays in place all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDew-Not Thick Film vs. Resistance Wire Heaters: The 54\" Advantage\u003c\/h3\u003e\n\u003cp\u003eUnlike older resistance-wire heaters that concentrate heat along a thin wire, the Dew-Not uses a 54\" long thick-film element where 66% of the surface area radiates heat. This design eliminates the hot spots and potential burnouts common in wire-based systems. The result is a more uniform thermal profile across your optics, superior reliability, and more efficient dew prevention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not 16\" heater strip use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN015 heater strip consumes \u003cstrong\u003e25.8 watts\u003c\/strong\u003e of power and draws \u003cstrong\u003e2.15 amps\u003c\/strong\u003e when operating at its rated \u003cstrong\u003e12V DC\u003c\/strong\u003e. This is a critical figure for calculating the battery life of your field power supply for an entire night of observing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not DN015 fit my 16\" Meade LX200 or Celestron EdgeHD 1400?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this heater strip is designed for \u003cstrong\u003e16\" OTAs\u003c\/strong\u003e. Its \u003cstrong\u003e55.0\" length\u003c\/strong\u003e provides ample circumference to wrap securely around the main tube of most commercial 16\" Schmidt-Cassegrain, Ritchey-Chrétien, or similar large-aperture telescopes. While designed for 16\" scopes, its length would also be sufficient for a 14\" model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a separate controller for this Dew-Not Heater Strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a dew controller is required. This heater strip terminates in a standard RCA-style plug and does not have a built-in regulator. You must connect it to a multi-channel dew controller, which allows you to adjust the power output based on ambient temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the actual length of the heating element in the 55\" Dew-Not strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heating element itself has a length of \u003cstrong\u003e54 inches\u003c\/strong\u003e. The overall strip is \u003cstrong\u003e55.0\" long\u003c\/strong\u003e to accommodate the velcro fasteners and provide a slight overlap for a secure fit without placing stress on the element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Dew-Not heater help when imaging faint targets like the Pelican Nebula (IC 5070)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging faint nebulae, even a thin layer of dew on your corrector plate can scatter light, reduce contrast, and obscure faint details. By applying a gentle \u003cstrong\u003e25.8W\u003c\/strong\u003e of heat, this strip keeps your optics just above the dew point, ensuring maximum light transmission and contrast for the entire duration of your multi-hour imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose a Dew-Not thick-film heater over a cheaper resistance wire heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is \u003cstrong\u003eeven heat distribution\u003c\/strong\u003e. Resistance wires create narrow lines of intense heat, which can lead to localized hot spots and uneven warming. The Dew-Not's thick-film technology provides a broad, uniform heating surface, which is more efficient, reliable, and safer for your optical coatings over the long term.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Telescope Models\u003c\/td\u003e\n\u003ctd\u003e16\" OTAs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Strip Length\u003c\/td\u003e\n\u003ctd\u003e55.0\" (139.7cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Element Length\u003c\/td\u003e\n\u003ctd\u003e54\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e25.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e2.15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip - 16\" Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967735001373,"sku":"DN015","price":108.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__56586.1606104332.1280.1280.png?v=1684345712"},{"product_id":"dew-not-heater-strip-hand-controller","title":"Dew-Not Heater Strip - Hand Controller","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eTotal Strip Length: 4.5\" (11.4 cm)\u003c\/li\u003e\n\u003cli\u003eHeating Element Length: 3.5\"\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 2.5W at 12V DC\u003c\/li\u003e\n\u003cli\u003eAttachment: Dual Rubber Bands\u003c\/li\u003e\n\u003cli\u003eCompatibility: Standard Handheld Controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - Hand Controller\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Heater Strip for Hand Controllers prevents sluggish response and fogged screens in cold weather with a 4.5\" strip containing a 3.5\" heating element specifically sized for telescope controllers. Drawing just 2.5W of power (0.21A) at 12V DC, this heater maintains optimal operating temperatures for your electronics without significant battery drain, ensuring your GoTo system remains responsive all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThick-Film Heater for 2.5W of Even Warmth\u003c\/h3\u003e\n\u003cp\u003eUnlike simple resistance-wire heaters, this Dew-Not strip uses an advanced thick-film heating element. This design distributes the 2.5W of heat more evenly across the 3.5\" element surface, eliminating the hot spots and potential burnouts that can damage sensitive electronics. This efficient, uniform warmth is critical for keeping LCD screens clear and internal components responsive in freezing temperatures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 4.5\" Strip for Unobstructed Controller Access\u003c\/h3\u003e\n\u003cp\u003eEngineered for practicality, the 4.5\" strip attaches to the back of your hand controller using a simple dual rubber band system. This placement keeps the heater securely in place while leaving the entire front panel—including all buttons and the screen—completely accessible. The exterior is cloth-covered with foam insulation, directing heat into the controller for maximum efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a heater for my hand controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn cold weather, the liquid crystals in an LCD screen can slow down, making the display difficult to read and button presses sluggish. The Dew-Not Hand Controller Heater provides a gentle 2.5W of warmth to keep the electronics within their optimal operating temperature range, ensuring your GoTo system remains responsive and reliable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew-Not Hand Controller Heater attach without blocking buttons?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed to wrap around the back of the controller. It uses a \u003cstrong\u003edual rubber band system\u003c\/strong\u003e to hold the 4.5\" strip securely in place, leaving the entire front face, including all controls and the screen, completely unobstructed for normal use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power controller is needed for this Dew-Not heater strip?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater strip requires a separate 12V DC dew controller to function. It connects via a standard RCA-style plug and is compatible with most dew control systems on the market, such as those from Dew-Not, Pegasus Astro, or ZWO. It cannot be plugged directly into a simple 12V battery without a controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eObserving the Orion Nebula (M42) on a cold night, my controller screen is fogging up. Will this 2.5W heater solve that?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2.5W output is specifically designed to combat this exact problem. By raising the temperature of the controller body just slightly above the dew point, the Dew-Not heater will prevent condensation from forming on the screen, keeping it clear and readable while you observe targets like M42.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the 4.5\" strip length and the 3.5\" element length on the DN016?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe total physical length of the fabric strip is \u003cstrong\u003e4.5 inches\u003c\/strong\u003e. The actual heating element embedded within that strip is \u003cstrong\u003e3.5 inches\u003c\/strong\u003e long. This provides a non-heated margin at the ends for durability and safe handling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen using my Celestron NexStar+ controller in freezing temperatures, the response gets sluggish. How does the Dew-Not heater help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThat sluggish response is a common symptom of cold electronics. The Dew-Not heater provides constant, low-level warmth to the controller's internal components. This keeps the processor and other electronics functioning at their normal speed, eliminating the input lag you experience in cold conditions with controllers like the NexStar+.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e4.5\" (11.4cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e3.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eHandheld Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e0.21 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown to Fit by Aperture\u003c\/td\u003e\n\u003ctd\u003eControllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew-Not Heater Strip - Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967735066909,"sku":"DN016","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-DN016__88014.1605146379.1280.1280.jpg?v=1684345713"},{"product_id":"dew-not-heater-strip-binoviewer","title":"Dew-Not Heater Strip - Binoviewer","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual 6.0\" heater strips designed for binoviewers\u003c\/li\u003e\n\u003cli\u003e5\" active heating element length per strip\u003c\/li\u003e\n\u003cli\u003eOperates on 12V DC power\u003c\/li\u003e\n\u003cli\u003eLow 5.6 W total power consumption\u003c\/li\u003e\n\u003cli\u003eDraws only 0.47 A of current\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eDew-Not Heater Strip - Binoviewer (DN017)\u003c\/h2\u003e\n\u003cp\u003eThe Dew-Not Binoviewer Heater (DN017) provides targeted dew prevention for both eyepieces of your binoviewer with a single, efficient unit. This system includes two 6.0\" heater strips, each containing a 5\" heating element, drawing a total of 5.6 W of power at 0.47 A from a standard 12V DC source. By delivering consistent, gentle warmth directly to your optics, it ensures your two-eyed views of the night sky remain clear and free of condensation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual 6\" Heaters for Complete Binoviewer Coverage\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for binoviewers, this Dew-Not heater consists of two 6.0\" strips permanently joined by a jumper cord. This integrated design allows you to wrap each eyepiece individually while only managing a single power cable, reducing clutter at the telescope. The soft cloth construction and Velcro closure ensure a snug fit on standard 1.25\" or 2\" eyepieces without scratching barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEven Heating: 5.6W Thick-Film Technology\u003c\/h3\u003e\n\u003cp\u003eUnlike heaters that use a single resistance wire, Dew-Not employs a patented thick-film technology that distributes warmth evenly across 66% of the strip's surface area. This design consumes a modest 5.6 W of power, eliminating the localized hot spots that can damage eyepieces or introduce tube currents. The result is a safer, more efficient heat transfer that keeps your optics just above the dew point without wasting battery life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Power and 0.47A Controller Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe Dew-Not Binoviewer Heater operates on a standard 12V DC power supply, drawing a minimal 0.47 A. It terminates in a common RCA-style plug, making it fully compatible with most third-party dew heater controllers from brands like Celestron, Kendrick, and Thousand Oaks. This allows for seamless integration into your existing dew management system, giving you precise control over the power output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power controller do I need for the Dew-Not DN017 heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dew-Not DN017 uses a standard male RCA plug and runs on 12V DC. It is compatible with virtually any dew controller on the market that has RCA-style outputs. You can connect it to a multi-channel controller alongside your other heaters for your main scope and finder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 5.6W power draw of the Dew-Not heater drain my field battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the 5.6 W (0.47 A at 12V) power draw is very efficient. When used with a controller that pulses the power, the average consumption is even lower. A typical 17 amp-hour field battery could run this heater strip for over 30 hours continuously at full power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dew-Not Binoviewer Heater attach to my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater features a soft cloth exterior and a built-in Velcro strip. You simply wrap one 6.0\" strip around the body of each eyepiece in your binoviewer and press the Velcro ends together for a secure fit. The outer foam layer helps direct all the heat inward toward the optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use just one of the two Dew-Not heater strips?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe two heater elements are wired together to a single plug and are intended to be used as a pair for a binoviewer. While a power takeoff plug is mentioned in some descriptions, allowing one heater to be used elsewhere, the primary design is for simultaneous dual-eyepiece operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eOn a humid night observing the Veil Nebula (NGC 6960) with my Dobsonian, how will this heater help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Veil Nebula requires dark, often damp, skies to see well. On such nights, the glass on your eyepieces can cool below the dew point, causing them to fog over. The Dew-Not heater applies a gentle, continuous 5.6 W of warmth, keeping the glass surface temperature just high enough to prevent condensation from ever forming, ensuring your view remains perfectly clear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 6.0\" Dew-Not strips fit around my larger 2\" eyepieces in a binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 6.0\" strip length is generally sufficient to wrap around the barrels of most 1.25\" and many 2\" eyepieces commonly used in binoviewers. The Velcro closure allows for a flexible fit. For eyepieces with exceptionally large housings, you may want to measure the circumference to ensure a proper overlap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Element Length\u003c\/td\u003e\n\u003ctd\u003e5\" (12.7cm) each (includes 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrip Length\u003c\/td\u003e\n\u003ctd\u003e6.0\" (15.2cm) each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnown to Fit\u003c\/td\u003e\n\u003ctd\u003eBinoviewers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e5.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e0.47 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967735099677,"sku":"DN017","price":95.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__50176.1605146203.1280.1280.jpg?v=1684345715"},{"product_id":"dew-not-heater-strip-telrad-heated-shield","title":"Dew-Not Heater Strip - Telrad Heated Shield","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for Telrad finders\u003c\/li\u003e\n\u003cli\u003eEfficient 1.44W power consumption\u003c\/li\u003e\n\u003cli\u003eOperates on standard 12V DC power\u003c\/li\u003e\n\u003cli\u003eDraws only 0.12 A of current\u003c\/li\u003e\n\u003cli\u003eSlides on for easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eDew-Not Heater Strip - Telrad Heated Shield (DN018)\u003c\/h2\u003e\n      \u003cp\u003eThe Dew-Not DN018 Heated Shield is engineered to eliminate dew from your Telrad's viewing window using just 1.44 watts of power. Operating on a standard 12V DC input, this heater draws a minimal 0.12 A, ensuring your Telrad remains clear without significantly draining your field battery.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e1.44W Thick-Film Heater: Even Heat, Low Power Draw\u003c\/h3\u003e\n      \u003cp\u003eUnlike resistance wire heaters that can create hot spots, the Dew-Not DN018 uses an advanced thick-film heating element. This technology distributes heat more evenly across the surface, gently and efficiently raising the temperature of your Telrad's glass just above the dew point. The result is a consistently clear view without risking damage to the finder or introducing tube currents.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e12V DC Operation for Seamless Telrad Integration\u003c\/h3\u003e\n      \u003cp\u003eDesigned specifically for the Telrad, this heated shield slides directly into place for a secure fit that won't disrupt alignment. It connects to any standard dew controller (sold separately) via its integrated cord and molded RCA jack. With a low current draw of just 0.12 A, it integrates easily into any 12V DC astronomy power system.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to power the Dew-Not DN018 Telrad Heated Shield?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou will need a \u003cstrong\u003e12V DC power source\u003c\/strong\u003e and a \u003cstrong\u003edew heater controller\u003c\/strong\u003e. The heater connects to the controller via a standard RCA-style plug. The controller, which is sold separately, allows you to adjust the heat output to match changing environmental conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Dew-Not Telrad heater installed?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eInstallation is simple and requires no tools. The Dew-Not DN018 is designed as a shield that \u003cstrong\u003eslides directly onto the body of your Telrad finder\u003c\/strong\u003e. Its custom-fit design ensures it stays in place without affecting the finder's alignment.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 1.44W output of the Dew-Not DN018 be enough on a very humid night?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The 1.44W output is specifically calculated for the surface area of the Telrad's window. The goal is not to make the window hot, but to keep it just a few degrees above the ambient dew point. This low-power approach is highly effective and prevents the formation of dew even in damp conditions while observing targets like the Orion Nebula (M42).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power will the DN018 heater draw from my field battery?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater is very efficient, drawing only \u003cstrong\u003e0.12 A of current\u003c\/strong\u003e. This is a minimal load for most portable 12V DC astronomy power supplies, allowing you to run it all night with little impact on your battery's total runtime.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Dew-Not Telrad heater on a different type of finder?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater, model DN018, is specifically designed for the \u003cstrong\u003eTelrad finder\u003c\/strong\u003e. Its shape and attachment method are custom-made for that model. Using it on other finders is not recommended as it will likely not fit correctly or provide even heating.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI use my Telrad on an 8\" SCT for finding Jupiter. Will installing the DN018 heater affect its alignment?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the heater is lightweight and designed to slide on securely without shifting the position of the Telrad. Once your finder is aligned, you can install or remove the heated shield without needing to realign it.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDN018\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eTelrad Finders\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1.44 W\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e0.12 A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967735132445,"sku":"DN018","price":60.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-DN018__56110.1605146318.1280.1280.jpg?v=1684345717"},{"product_id":"dew-not-heater-strip-rigel-quick-fix","title":"Dew-Not Heater Strip - Rigel Quick Fix","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-designed to fit the Rigel QuikFinder\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on finder optics\u003c\/li\u003e\n\u003cli\u003eOperates on standard 12V DC power\u003c\/li\u003e\n\u003cli\u003e6-foot cable with a universal RCA plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eDew-Not Heater Strip - Rigel Quick Fix\u003c\/h2\u003e\n      \u003cp\u003eThe Dew-Not Heater Strip for the Rigel QuikFinder is a dedicated solution to keep your finder's optical window clear, even on the most humid nights. This heater is specifically shaped to attach directly to the QuikFinder body, delivering gentle, continuous warmth from a standard 12V DC power source. Its integrated 6' cable with a standard RCA plug connects to any dew controller, ensuring your finder remains a reliable aiming tool throughout your entire observing session.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Custom-Fit 12V DC Dew Solution for the Rigel QuikFinder\u003c\/h3\u003e\n      \u003cp\u003eUnlike generic dew straps that wrap around an objective, this Dew-Not heater is purpose-built to fit the unique shape of the Rigel QuikFinder. The thick-film heating element attaches to the side of the finder, efficiently transferring heat to prevent condensation from forming on the optical surface. This specificity is its greatest strength, but also its primary limitation; it is not a general-purpose heater for other accessories.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e6' Cable and Universal Controller Compatibility\u003c\/h3\u003e\n      \u003cp\u003ePowering the heater is straightforward. The generous 6' cable provides ample length to reach your dew controller or power distribution hub without creating cable strain or tangles. It terminates in a male RCA plug, the industry standard for 12V DC dew heater systems, guaranteeing compatibility with virtually any dew controller on the market.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew-Not Heater Strip fit other finders besides the Rigel QuikFinder?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this heater is specifically designed and shaped to fit the body of the \u003cstrong\u003eRigel QuikFinder\u003c\/strong\u003e. It is not a universal heater and will not properly fit other reflex sights or finderscopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Dew-Not Heater Strip to my Rigel QuikFinder?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater attaches to the side of the Rigel QuikFinder using supplied Velcro closures. This allows for easy application and removal without permanently modifying your finder.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for this Dew-Not Heater Strip?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou can use any standard 12V DC dew heater controller. The Dew-Not Heater Strip terminates in a \u003cstrong\u003estandard RCA plug\u003c\/strong\u003e, which is compatible with controllers from all major manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy Rigel QuikFinder dews up quickly on humid nights with my Dobsonian. Is this Dew-Not heater a permanent installation?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, it is not permanent. The heater attaches with Velcro, so you can easily remove it for storage or use on another telescope equipped with a Rigel QuikFinder. It's an ideal solution for field setups with Dobsonians where gear is assembled and disassembled each session.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm setting up my SCT for a long imaging session targeting the Orion Nebula (M42). How does the Dew-Not Heater's 6' cable help?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e6' cable\u003c\/strong\u003e is crucial for complex setups like an SCT on an equatorial mount. It provides enough length to route the cable neatly from the finder to your dew controller without pulling or snagging as the telescope slews across the sky to track an object like M42.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew-Not Heater for the Rigel QuikFinder draw?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the exact amperage is not specified, heaters for small finders like the Rigel QuikFinder have a very low power draw compared to heaters for large primary mirrors or objectives. It will consume a minimal amount of your portable battery's capacity.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eDNRQ\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eRigel QuikFinder\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCable\u003c\/td\u003e\n\u003ctd\u003e6' with RCA plug\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/dew-not-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eDew-Not Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dew-Not","offers":[{"title":"Default Title","offer_id":44967735329053,"sku":"DNRQ","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Dew-Not-Heater-Strip__85621.1605146203.1280.1280.jpg?v=1684345719"},{"product_id":"primalucelab-ecco2-environmental-computerized-controller-for-eagle","title":"PrimaLuceLab ECCO2, Environmental Computerized Controller for EAGLE","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAutomates dew heater power based on real-time dew point calculation\u003c\/li\u003e\n\u003cli\u003eMonitors ambient temperature, humidity, and atmospheric pressure\u003c\/li\u003e\n\u003cli\u003eSupports up to 3 external temperature probes for precise optics monitoring\u003c\/li\u003e\n\u003cli\u003eIntegrates seamlessly with EAGLE computers via a single USB-C cable\u003c\/li\u003e\n\u003cli\u003eASCOM driver allows use as an environmental monitor for any Windows 10\/11 PC\u003c\/li\u003e\n\u003cli\u003eCNC-machined from 6061 T6 aluminum, weighing only 75 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab ECCO2, Environmental Computerized Controller for EAGLE\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab ECCO2 automates dew prevention by monitoring your optics with up to 3 temperature probes and calculating the precise dew point from ambient temperature, humidity, and pressure. Connecting directly to your EAGLE via a single USB-C cable, this 75-gram controller automatically adjusts power to your heaters, eliminating manual guesswork during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutomated Dew Prevention: Monitoring for up to 3 Probes\u003c\/h3\u003e\n\u003cp\u003eThe ECCO2 removes the constant worry of dew ruining a long exposure by automating the entire process. It continuously monitors ambient temperature, humidity, and pressure with its integrated sensors, while also tracking the specific temperature of your telescope's optics via up to 3 external probes. From this data, it calculates the exact dew point and intelligently adjusts the power sent to your dew heaters through the EAGLE's ports, applying only the necessary energy to stay just above the condensation point.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMART Control:\u003c\/strong\u003e The ECCO2 automatically detects if a calibrated temperature probe is connected to the wrong port, preventing inaccurate readings and ensuring the system operates reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDARK Mode:\u003c\/strong\u003e For visual observers or those operating in extremely dark conditions, the unit's indicators can be disabled to preserve night vision.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless EAGLE Integration: A 75g Plug-and-Play Solution\u003c\/h3\u003e\n\u003cp\u003eDesigned as an external module for maximum accuracy, the ECCO2 weighs only 75 grams and draws power directly from the EAGLE through its robust, reversible USB-C port. This external placement prevents the EAGLE's own operational heat from influencing the sensitive ambient temperature and humidity readings. The body is CNC-machined from a single block of 6061 T6 aluminum and red-anodized for durability, mounting directly to any Vixen-style finder shoe for a clean, cable-managed setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStandalone Monitoring with ASCOM: Environmental Data for Any Windows 10\/11 PC\u003c\/h3\u003e\n\u003cp\u003eWhile the ECCO2 is engineered for the EAGLE ecosystem, its utility extends to any observatory setup. With the provided ASCOM driver, the ECCO2 can connect to any standard Windows 10 or 11 computer to function as a dedicated environmental monitoring station. This allows you to log temperature, humidity, and pressure data in third-party software for seeing analysis or weather tracking. The key limitation is that outside the EAGLE system, the ECCO2 provides sensor data only and cannot control dew heater outputs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eECCO2 vs. Manual Control: Automated Power for 3 Heater Channels\u003c\/h3\u003e\n\u003cp\u003eA manual dew controller requires you to constantly guess the correct power setting. Set it too low, and your optics will dew over, ending your imaging run. Set it too high, and you waste precious battery power while introducing potential tube currents that can degrade image sharpness. The ECCO2 solves this trade-off by operating as a closed-loop system. It provides a precise, variable amount of power to each of the EAGLE's three controllable dew channels, ensuring your optics remain clear without overheating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab ECCO2 prevent dew?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eECCO2\u003c\/strong\u003e uses built-in sensors to measure the ambient air temperature, humidity, and pressure. It uses this data to calculate the dew point—the exact temperature at which condensation will form. It then reads the temperature of your telescope's optics via external probes and directs your EAGLE to supply just enough power to the dew heaters to keep the glass slightly warmer than the dew point, preventing dew from ever forming.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich EAGLE models are compatible with the ECCO2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ECCO2 is compatible with the \u003cstrong\u003eEAGLE5, EAGLE4, EAGLE LE, EAGLE3, and EAGLE2\u003c\/strong\u003e. Please note that for use with an EAGLE2, an update of the operating system and EAGLE Manager software is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab ECCO2 without an EAGLE computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but with limited functionality. Using the provided \u003cstrong\u003eASCOM driver\u003c\/strong\u003e, you can connect the ECCO2 to a standard Windows 10\/11 computer to use it as a high-quality environmental monitor. It will provide real-time temperature, humidity, and pressure data to compatible software, but it \u003cstrong\u003ecannot control dew heaters\u003c\/strong\u003e without being connected to an EAGLE.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many temperature probes do I need for the ECCO2 on my 11\" SCT with a guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a typical Schmidt-Cassegrain setup with a separate guide scope, you would ideally use \u003cstrong\u003etwo temperature probes\u003c\/strong\u003e. Place one near the edge of the main corrector plate and the second on the objective lens of your guide scope. The ECCO2 supports up to three probes, leaving you a spare channel for a finder scope or other accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the ECCO2's readings be affected by heat from my EAGLE4?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. PrimaLuceLab deliberately designed the ECCO2 as an \u003cstrong\u003eexternal module\u003c\/strong\u003e for precisely this reason. If the sensors were inside the EAGLE's main body, its own processor heat would corrupt the ambient temperature and humidity readings. By placing the ECCO2 on a finder shoe away from the main computer, it records accurate, reliable environmental data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I mount the PrimaLuceLab ECCO2 to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ECCO2 comes with a foot that fits directly into any standard \u003cstrong\u003eVixen-style finder scope base\u003c\/strong\u003e. If your telescope doesn't have a spare base, you can add one easily. The ECCO2 can also serve as a mounting point itself for a guide scope or finder by adding the optional \"Guide scope support for ECCO\" accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PrimaLuceLab_ECCO2_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967822131485,"sku":"PLL-ECCO2","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-ECCO2-environmental-computerized-controller-for-EAGLE__33583.1617396001.1280.1280.jpg?v=1684346001"},{"product_id":"primalucelab-dew-heater-for-50mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 50mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 50mm Diameter Optics\u003c\/li\u003e\n\u003cli\u003eFits Optical Tubes from 40mm to 60mm\u003c\/li\u003e\n\u003cli\u003eLow Power Draw at 330mA\u003c\/li\u003e\n\u003cli\u003e12V DC Power with RCA Connector\u003c\/li\u003e\n\u003cli\u003eIntegrates with PrimaLuceLab EAGLE Controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 50mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 50mm Diameter Telescopes prevents condensation on small optics by applying gentle, consistent warmth, drawing just 330mA from a standard 12V power source. Its elastic design and strong Velcro fastener ensure a secure fit on optical tubes ranging from 40mm to 60mm in diameter, making it an essential tool for finderscopes, guide scopes, and small refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e330mA Gentle Heat for 50mm Optics\u003c\/h3\u003e\n\u003cp\u003eDew formation on objective lenses is a persistent issue, especially for sealed optical tubes like refractors and Schmidt-Cassegrains that can't easily equalize with falling ambient temperatures. This heater gently raises the lens temperature just above the dew point, ensuring your view remains clear all night. With a power consumption of only 330mA, it provides effective prevention without significantly draining your field battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Fit for 40mm to 60mm Tubes\u003c\/h3\u003e\n\u003cp\u003eDesigned primarily for 50mm optics, this dew heater incorporates an elastic element that allows it to conform to a range of tube sizes from 40mm to 60mm. The robust Velcro closure provides a strong, uniform grip around the optical tube, ensuring excellent thermal contact without slipping. This adaptability makes it a versatile solution for nearly any finderscope or compact guide scope in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V RCA Connection for EAGLE Integration\u003c\/h3\u003e\n\u003cp\u003eThis dew heater is engineered for seamless integration with the PrimaLuceLab EAGLE series of telescope controllers. You can plug it directly into one of the EAGLE's 12V, software-controllable power ports. For observers outside the EAGLE ecosystem, the heater's standard RCA-style connector and 12V requirement make it fully compatible with most third-party dew heater controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab 50mm Dew Heater connect to an EAGLE controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater connects directly to one of the \u003cstrong\u003e12V RCA-style power output ports\u003c\/strong\u003e on any PrimaLuceLab EAGLE model. Power to the heater can then be managed and monitored through the EAGLE's control software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab 50mm Dew Heater fit my 60mm guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed for 50mm optics, the heater has an elastic construction that allows it to fit securely on optical tubes with diameters from \u003cstrong\u003e40mm to 60mm\u003c\/strong\u003e. The Velcro fastener will ensure a snug fit on your 60mm guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the power consumption of the PrimaLuceLab 50mm Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater has a low power draw of \u003cstrong\u003e330mA\u003c\/strong\u003e (0.33A) at 12V. This efficient design provides sufficient heat to prevent dew while minimizing the impact on your field battery's lifespan during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab 50mm Dew Heater with a non-PrimaLuceLab dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The heater uses a standard \u003cstrong\u003eRCA-style power connector\u003c\/strong\u003e and runs on \u003cstrong\u003e12V DC power\u003c\/strong\u003e. It is compatible with any dew controller that provides power through this common connection type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 50mm finder on my Celestron 8\" SCT. Is this the right dew heater for it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is the ideal heater for a 50mm finder scope. Both the main optics of an SCT and the smaller optics of a finder are highly susceptible to dew, and keeping both clear is critical for locating and tracking targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is my PrimaLuceLab 50mm Dew Heater not getting warm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, confirm the heater is securely plugged into a \u003cstrong\u003e12V power source\u003c\/strong\u003e. If using an EAGLE or other controller, ensure the specific port it's connected to is switched on and configured to provide power. Also, verify that your main power supply has enough amperage to run all your connected equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Diameter\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit Range\u003c\/td\u003e\n\u003ctd\u003e40mm - 60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e330mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772932\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 50mm Diameter Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874101533,"sku":"PLL-PLLFAS50","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-50mm-diameter-telescopes__22359.1617396029.1280.1280.jpg?v=1684346349"},{"product_id":"primalucelab-dew-heater-for-60mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 60mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 60mm diameter telescopes and guide scopes\u003c\/li\u003e\n\u003cli\u003eFits optical tubes from 50mm to 70mm in diameter\u003c\/li\u003e\n\u003cli\u003eOperates on standard 12V DC power\u003c\/li\u003e\n\u003cli\u003eLow power consumption of 500mA\u003c\/li\u003e\n\u003cli\u003eConnects via a standard RCA plug\u003c\/li\u003e\n\u003cli\u003eOptimized for use with PrimaLuceLab EAGLE computers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 60mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 60mm Diameter Telescopes provides a reliable 12V heating solution to keep your optics clear all night. Designed to fit tubes from 50mm to 70mm, this heater draws just 500mA of power, making it an efficient addition to any field setup. It connects via a standard RCA plug, offering native power and control when paired with a PrimaLuceLab EAGLE computer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Fit for 50mm to 70mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eDew formation on objective lenses is one of the most common issues that can end an imaging or observing session, particularly with refractors and SCTs. This dew heater wraps around your optical tube, gently warming the optics above the dew point. Thanks to its elastic construction and secure Velcro fastener, it provides a firm, even fit on any telescope tube with a diameter between 50mm and 70mm, ensuring efficient heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Operation with 500mA Power Draw\u003c\/h3\u003e\n\u003cp\u003eEngineered for portable astronomy, this heater operates on a standard 12V DC power supply, compatible with virtually all field batteries and power tanks. Its power consumption is a modest 500mA, allowing for continuous operation throughout the night without significantly draining your power source. The use of a common RCA connector means it can be plugged into a variety of dew controllers or power distribution units, not just PrimaLuceLab hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eNative Control with PrimaLuceLab EAGLE via RCA Connector\u003c\/h3\u003e\n\u003cp\u003eWhile this dew heater functions perfectly with any compatible 12V controller, it is designed to integrate seamlessly into the PrimaLuceLab ecosystem. When connected to one of the EAGLE's power ports, you can control the heater's output directly through the EAGLE's software interface. This eliminates the need for a separate, standalone dew controller, reducing cable clutter and simplifying your astrophotography setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 60mm Dew Heater fit my guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this heater is an ideal choice for most 50mm and 60mm guide scopes. Its flexible range from \u003cstrong\u003e50mm to 70mm\u003c\/strong\u003e ensures a snug fit on the main barrel or the dew shield of common guide scopes, preventing dew from forming on the guide objective and ruining your tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab dew heater without an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While designed for the EAGLE system, it is a standard \u003cstrong\u003e12V dew heater\u003c\/strong\u003e with an RCA connector. You can plug it into any third-party dew controller or 12V power source that uses RCA-style output jacks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the 60mm dew heater draw?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater has a power consumption of \u003cstrong\u003e500mA\u003c\/strong\u003e when operating at full power on a 12V supply. This is a relatively low draw, making it suitable for use with portable battery packs for extended imaging sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy 60mm refractor has a 70mm dew shield. Will this heater still work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's perfectly suited for that. The heater is designed to accommodate diameters up to \u003cstrong\u003e70mm\u003c\/strong\u003e. Placing the heater around the dew shield, close to the objective lens, is the most effective way to prevent dew from forming on the front element of your refractor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this PrimaLuceLab dew heater have a built-in temperature controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a heating element only. It does not have a built-in thermostat or controller. The power output must be regulated by an external device, such as the variable power ports on a \u003cstrong\u003ePrimaLuceLab EAGLE\u003c\/strong\u003e or a dedicated multi-channel dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this heater suitable for a small wide-field scope like a RedCat 51?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. The William Optics RedCat 51 and similar small refractors have dew shield diameters that fall comfortably within the heater's \u003cstrong\u003e50mm to 70mm\u003c\/strong\u003e range. Its low power draw is also well-matched to the lightweight, portable setups these telescopes are often used in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Diameter\u003c\/td\u003e\n\u003ctd\u003e60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit Range\u003c\/td\u003e\n\u003ctd\u003e50mm to 70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e500mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772949\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 60mm Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874134301,"sku":"PLL-PLLFAS60","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-60mm-diameter-telescopes__18205.1617396029.1280.1280.jpg?v=1684346350"},{"product_id":"primalucelab-dew-heater-for-80mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 80mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 80mm nominal diameter telescopes\u003c\/li\u003e\n\u003cli\u003eFits optical tubes from 70mm to 90mm in diameter\u003c\/li\u003e\n\u003cli\u003ePowered by 12V DC input\u003c\/li\u003e\n\u003cli\u003eEfficient 670mA power consumption\u003c\/li\u003e\n\u003cli\u003eIntegrates directly with PrimaLuceLab EAGLE units\u003c\/li\u003e\n\u003cli\u003eStandard RCA power connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 80mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 80mm Diameter Telescopes provides active 12V heating to keep your optics free of condensation during critical imaging sessions. Drawing an efficient 670mA, it is designed with an elastic fix to fit optical tubes from 70mm to 90mm in diameter, ensuring your view remains sharp and clear all night long.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e670mA Heating for 70mm to 90mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eDew formation is one of the most common frustrations in astrophotography, especially with sealed optical tubes like refractors and Schmidt-Cassegrains. This heater band gently raises the temperature of your telescope's optics just above the dew point, preventing moisture from condensing on the lens. The integrated elastic and Velcro strap ensures a secure, uniform fit on tubes ranging from 70mm to 90mm, making it a versatile solution for most 80mm-class instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Power via RCA and EAGLE Integration\u003c\/h3\u003e\n\u003cp\u003eEngineered for seamless integration into the PrimaLuceLab ecosystem, this dew heater connects and is controlled directly from an EAGLE computer's 12V power port, eliminating the need for separate dew controllers and extra cables. For users without an EAGLE, the standard RCA connector allows it to be powered by any compatible 12V DC external power source, such as a field battery or power supply unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the PrimaLuceLab 80mm dew heater use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is designed for efficiency, drawing \u003cstrong\u003e670mA\u003c\/strong\u003e from a standard \u003cstrong\u003e12V DC\u003c\/strong\u003e power source. This low consumption helps conserve field battery power while providing sufficient heat to prevent dew formation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 80mm heater fit my William Optics ZenithStar 73?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater is designed for optical tubes with an outer diameter between \u003cstrong\u003e70mm and 90mm\u003c\/strong\u003e. To confirm compatibility with your ZenithStar 73 or any other telescope, measure the outer diameter of the optical tube or dew shield where you intend to place the band. If it falls within this range, the elastic and Velcro will provide a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab dew heater without an EAGLE computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While it is optimized for the EAGLE system, the dew heater uses a standard \u003cstrong\u003eRCA connector\u003c\/strong\u003e and can be powered by any 12V DC source that provides sufficient amperage, such as a portable astronomy battery pack or a dedicated dew controller from another manufacturer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the PrimaLuceLab dew heater for 80mm scopes require a separate controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you are connecting it to a PrimaLuceLab EAGLE, no separate controller is needed; power output is managed through the EAGLE's software. If you are connecting it to a simple 12V battery, it will run at full power continuously. For variable control in a non-EAGLE setup, you would need to connect it to a dedicated dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab heater attach to a telescope like an Explore Scientific ED80?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You simply wrap the heater band around the main optical tube, just behind the front lens cell or on the dew shield itself. The integrated \u003cstrong\u003eVelcro strap\u003c\/strong\u003e allows you to pull it snug for a secure and thermally efficient connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab 80mm dew heater waterproof?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dew heater is designed to operate in high-humidity and dewy conditions. However, it is not fully waterproof and should be protected from direct rain. Ensure all electrical connections, particularly the RCA plug, are shielded from moisture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Telescope Diameter\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tube Diameter\u003c\/td\u003e\n\u003ctd\u003e70mm - 90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e670mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772925\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePrimaLuceLab Dew Heater for 80mm Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874199837,"sku":"PLL-PLLFAS80","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-80mm-diameter-telescopes__19967.1617396029.1280.1280.jpg?v=1684346352"},{"product_id":"primalucelab-dew-heater-for-100mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 100mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits telescopes with 100mm to 120mm tube diameters\u003c\/li\u003e\n\u003cli\u003ePowered by 12V DC via a standard RCA connector\u003c\/li\u003e\n\u003cli\u003eLow 500mA power consumption\u003c\/li\u003e\n\u003cli\u003eVelcro and elastic straps for a secure, uniform fit\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with PrimaLuceLab EAGLE controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 100mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 100mm Diameter Telescopes provides consistent, low-power heating for optical tubes from 100mm to 120mm, preventing dew formation during critical imaging sessions. Drawing just 500mA from a standard 12V power source, it connects via an RCA plug for direct integration with the PrimaLuceLab EAGLE or any standard dew controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Fit for 100mm to 120mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eThis dew heater is engineered for a secure fit on a range of common telescopes, including 4-inch refractors and similar instruments. The combination of a strong Velcro fastener and an elasticated section ensures the heating element maintains firm, uniform contact around the tube, eliminating cool spots where condensation could form.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e500mA Power Draw: EAGLE Integration \u0026amp; Universal 12V Power\u003c\/h3\u003e\n\u003cp\u003eDesigned as a core component of the PrimaLuceLab ecosystem, this heater plugs directly into one of the EAGLE's controllable 12V power ports. While optimized for EAGLE, it is not a proprietary solution; the standard RCA connector and 12V input allow it to be powered by any third-party dew controller, offering a low 500mA draw that won't strain your field battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab dew heater fit my 102mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The heater is designed with an elastic section that allows it to securely fit telescope tubes with diameters ranging from \u003cstrong\u003e100mm to 120mm\u003c\/strong\u003e, making it a perfect fit for 102mm (4-inch) refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the PrimaLuceLab 100mm dew heater if I don't have an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can power this dew heater with any standard \u003cstrong\u003e12V DC\u003c\/strong\u003e power source that has an \u003cstrong\u003eRCA-style output port\u003c\/strong\u003e. This includes most third-party standalone dew heater controllers and many astronomy-specific power distribution boxes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the power consumption of this PrimaLuceLab dew heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater has a low power draw of just \u003cstrong\u003e500mA\u003c\/strong\u003e (0.5A). This efficient design minimizes the load on your field power supply, allowing for longer observing or imaging sessions before needing to recharge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eOn a humid night, is this heater enough for my Celestron C5 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Celestron C5 has a tube diameter of approximately 150mm, which is outside the 100mm-120mm range of this specific heater. While it might work, it would not provide the full, even coverage needed to reliably prevent dew on the corrector plate. You would need a larger dew heater designed for 5-inch or 6-inch telescopes for optimal results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Velcro on the PrimaLuceLab dew heater ensure good contact?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater band uses a strong Velcro closure that allows you to pull it snug against the optical tube. The integrated elastic section provides constant tension, ensuring the heating element inside the band maintains direct, uniform contact with the telescope body for efficient heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the heat output of this PrimaLuceLab heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater does not have a built-in controller. The heat output is managed by the device it's connected to. When plugged into a \u003cstrong\u003ePrimaLuceLab EAGLE\u003c\/strong\u003e, you can use the EAGLE Manager software to control power. If connected to a standard dew controller, you would use that controller's knobs or settings to adjust the heat level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescope Diameter\u003c\/td\u003e\n\u003ctd\u003e100mm to 120mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e500mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874265373,"sku":"PLL-PLLFAS100","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-100mm-diameter-telescopes__20275.1617396029.1280.1280.jpg?v=1684346354"},{"product_id":"primalucelab-dew-heater-for-120mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 120mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 120mm Diameter Telescopes\u003c\/li\u003e\n\u003cli\u003e12V DC Power Input with RCA Connector\u003c\/li\u003e\n\u003cli\u003eVelcro and Elastic Band for Secure Fit\u003c\/li\u003e\n\u003cli\u003eIntegrates with PrimaLuceLab EAGLE\u003c\/li\u003e\n\u003cli\u003ePrevents Dew on Refractors and SCTs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 120mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater is designed specifically for 120mm diameter telescopes, preventing moisture from condensing on your objective lens or corrector plate. It operates on a standard 12V DC input, integrating seamlessly with common field power supplies and the PrimaLuceLab EAGLE ecosystem to keep your optics clear all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDew Prevention for 120mm Refractors and SCTs\u003c\/h3\u003e\n\u003cp\u003eDew is a session-ending problem, especially for sealed optical tubes like refractors and Schmidt-Cassegrains where the front element is exposed to the night air. This heater band wraps around any optical tube around 120mm in diameter, using a strong Velcro closure and elastic material to ensure a snug, continuous fit. This design delivers consistent, low-level heat directly to the tube, keeping the glass temperature just above the dew point without introducing tube currents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Power and EAGLE Ecosystem Integration\u003c\/h3\u003e\n\u003cp\u003eDesigned for the PrimaLuceLab ecosystem, this dew heater connects directly to one of the power ports on an EAGLE computer, allowing for integrated control. For setups without an EAGLE, it can be powered by any external 12V DC source using its standard RCA-type connector. This flexibility ensures you can keep your optics clear regardless of your field power setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab Dew Heater for 120mm Telescopes attach to the tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt uses a combination of strong \u003cstrong\u003eVelcro and an elastic band\u003c\/strong\u003e. This allows you to wrap it securely around your 120mm optical tube for a snug fit that ensures even heat distribution across the telescope body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 120mm ED refractor. Will this dew heater work with it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This dew heater is specifically designed for \u003cstrong\u003e120mm diameter telescopes\u003c\/strong\u003e and is ideal for refractors and other sealed-tube designs like Schmidt-Cassegrains, which are particularly susceptible to dewing up on the front objective or corrector plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the PrimaLuceLab Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need a \u003cstrong\u003e12V DC power source\u003c\/strong\u003e. The heater comes with a standard \u003cstrong\u003eRCA-type power connector\u003c\/strong\u003e, making it compatible with most field batteries and astronomy power supplies. It is also designed to plug directly into a PrimaLuceLab EAGLE unit for integrated power management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the heat output of this PrimaLuceLab Dew Heater with my Celestron SCT setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater provides constant heat when connected directly to a standard 12V source. For variable control, you would need to connect it to a dedicated dew controller or the \u003cstrong\u003ePrimaLuceLab EAGLE\u003c\/strong\u003e, which can manage the power output to its ports. The heater itself does not have a built-in controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the PrimaLuceLab Dew Heater only for 120mm telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is optimized for \u003cstrong\u003e120mm diameter tubes\u003c\/strong\u003e. The elastic nature of the band provides some flexibility for a secure fit on tubes very close to this size, but it is engineered to provide the most effective and uniform heating for a 120mm optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a dew heater for my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAs your telescope optics cool down during the night, they can reach the dew point, causing moisture from the air to condense on the lens or corrector plate. This condensation acts like a fog, severely degrading image quality and ending your observing or imaging session. A dew heater gently warms the optics to keep them just above the dew point, ensuring a clear view all night long.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772987\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 120mm Diameter Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874298141,"sku":"PLL-PLLFAS120","price":91.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-120mm-diameter-telescopes__58813.1617396030.1280.1280.jpg?v=1684346355"},{"product_id":"primalucelab-dew-heater-for-150mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 150mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 150mm Diameter Telescopes\u003c\/li\u003e\n\u003cli\u003eFits Optical Tubes from 140mm to 160mm\u003c\/li\u003e\n\u003cli\u003e12V DC Operation with RCA Connector\u003c\/li\u003e\n\u003cli\u003e1000mA Power Consumption\u003c\/li\u003e\n\u003cli\u003eIntegrates with PrimaLuceLab EAGLE Computers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 150mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 150mm diameter telescopes provides consistent, gentle heat to prevent session-ending condensation on your optics. Designed to fit tubes from 140mm to 160mm in diameter, it draws 1000mA from a 12V power source, making it an essential tool for observers using refractors or Schmidt-Cassegrains on humid nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V, 1000mA Heating for Dew-Free Optics\u003c\/h3\u003e\n\u003cp\u003eAs your telescope cools below the ambient dew point, moisture condenses directly onto your objective lens or corrector plate, obscuring the view. This dew heater counteracts the effect by applying just enough warmth to keep the optical surface clear, drawing 1000mA from a standard 12V DC source to ensure your imaging or observing session continues uninterrupted.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Fit for 140mm to 160mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eEngineered for telescopes with a nominal 150mm aperture, this heater features an elastic construction that accommodates optical tube diameters from 140mm to 160mm. A secure Velcro fastener ensures the band maintains uniform contact around the tube, delivering efficient and even heat transfer right where it's needed—at the front of the optical assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eNative EAGLE Control and Universal 12V RCA Power\u003c\/h3\u003e\n\u003cp\u003eThis dew heater is designed for seamless integration with the PrimaLuceLab EAGLE, allowing for direct power and control from the EAGLE's built-in ports. For users outside the EAGLE ecosystem, the heater includes a standard RCA connector, making it compatible with a wide range of third-party 12V dew controllers and power supplies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the PrimaLuceLab Dew Heater on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWrap the dew heater band around the optical tube as close to the front objective lens or corrector plate as possible. The elastic material allows it to stretch for a snug fit, and you secure it in place using the integrated \u003cstrong\u003eVelcro fastener\u003c\/strong\u003e for strong, uniform contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab Dew Heater fit my 6-inch Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. A 6-inch telescope has an optical tube diameter of approximately 152mm, which falls squarely within this heater's supported \u003cstrong\u003e140mm to 160mm range\u003c\/strong\u003e. It is an excellent fit for preventing dew on a secondary mirror or a corrector plate on a Schmidt-Newtonian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the PrimaLuceLab Dew Heater without an EAGLE computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While designed for the EAGLE system, the dew heater uses a standard \u003cstrong\u003e12V RCA power connector\u003c\/strong\u003e. This allows it to be plugged into any compatible external dew controller or 12V power tank that provides an RCA-style output port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this dew heater necessary for my 150mm SCT on a humid night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is highly recommended. Schmidt-Cassegrain telescopes (SCTs) have a large, exposed corrector plate at the front of the tube which is extremely susceptible to dew. A dew heater like this one is often considered essential equipment for preventing condensation from forming on the corrector and ending an observing session prematurely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the PrimaLuceLab 150mm Dew Heater draw?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dew heater has a power consumption of \u003cstrong\u003e1000mA (1.0 Amp)\u003c\/strong\u003e when connected to a 12V power source. This is a critical figure for calculating the total power budget for your portable field setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere on the telescope tube should I place the PrimaLuceLab Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor maximum effectiveness, the dew heater should be placed on the main optical tube, wrapped around the cell that holds the primary lens or corrector plate. Positioning it as far forward as possible ensures the heat is applied directly to the glass element most exposed to the night air.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772918\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Diameter\u003c\/td\u003e\n\u003ctd\u003e150mm (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit Range\u003c\/td\u003e\n\u003ctd\u003e140mm to 160mm diameter tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1000mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 150mm Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874330909,"sku":"PLL-PLLFAS150","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-150mm-diameter-telescopes__86752.1617396030.1280.1280.jpg?v=1684346357"},{"product_id":"primalucelab-dew-heater-for-180mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 180mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eNominal Telescope Diameter: 180mm\u003c\/li\u003e\n\u003cli\u003eCompatible Diameter Range: 160mm - 200mm\u003c\/li\u003e\n\u003cli\u003ePower Requirement: 12V DC\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 1170mA\u003c\/li\u003e\n\u003cli\u003eConnector: RCA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 180mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 180mm Diameter Telescopes is engineered to fit optical tubes from 160mm to 200mm, protecting your optics from session-ending condensation. Operating on a standard 12V supply, this heater draws 1170mA to gently warm your telescope and keep the glass surface above the dew point, which is critical for sealed optical tubes like Schmidt-Cassegrains and refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V, 1170mA Dew Prevention for 160-200mm Tubes\u003c\/h3\u003e\n\u003cp\u003eThis heater delivers consistent, gentle heat to prevent moisture from forming on your corrector plate or objective lens. It operates on a common 12V DC power source and consumes 1170mA, providing enough power to combat heavy dew without introducing tube currents. The elastic construction ensures a snug fit on any telescope with an outer diameter between 160mm and 200mm, making it a flexible solution for various mid-sized instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure Velcro Fit with EAGLE Compatibility\u003c\/h3\u003e\n\u003cp\u003eInstallation is simple and secure thanks to a robust Velcro fastener that ensures strong, uniform contact around the optical tube. This dew heater is designed to be powered and controlled directly from a PrimaLuceLab EAGLE computer, integrating seamlessly into the PLAY software ecosystem. For users without an EAGLE, it can be connected to any 12V external power source with a standard RCA connector, such as a standalone dew controller or a portable power tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the PrimaLuceLab 180mm Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dew heater requires a \u003cstrong\u003e12V DC power source\u003c\/strong\u003e with an \u003cstrong\u003eRCA-style connector\u003c\/strong\u003e. It is designed for native integration with the power ports on a PrimaLuceLab EAGLE, but it works perfectly with third-party dew controllers or portable 12V batteries that have an RCA output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab dew heater fit my 8-inch SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. While an 8-inch aperture corresponds to 203mm, the physical outer diameter of the optical tube is typically smaller. This heater's compatible range of \u003cstrong\u003e160mm to 200mm\u003c\/strong\u003e is designed to fit many popular 6-inch refractors and 8-inch Schmidt-Cassegrain or Maksutov-Cassegrain telescopes. Always measure your telescope's tube diameter to confirm a perfect fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 1170mA power draw of this dew heater high for a field battery?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1170mA (or 1.17A)\u003c\/strong\u003e power draw is a moderate load that must be factored into your total power budget for a night of imaging. When connected to a controller like the EAGLE, the heater will cycle on and off, reducing average consumption. If connected directly to a battery without a controller, it will draw this current continuously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of using the PrimaLuceLab 180mm Dew Heater with an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen connected to an EAGLE, you can control the power output to the heater directly from the \u003cstrong\u003eEAGLE Manager or PLAY software\u003c\/strong\u003e. This allows for precise, automated temperature management, reduces cable clutter by using the EAGLE's integrated power ports, and simplifies your entire imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this PrimaLuceLab dew heater without an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. You can plug it into any 12V dew controller that uses RCA output jacks. You can also power it directly from a 12V battery with an RCA port, but be aware that the heater will run at 100% power continuously, which may not be necessary and will consume battery life faster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this dew heater necessary for imaging Jupiter with a 180mm Maksutov-Cassegrain?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's highly recommended. Sealed optical tubes like Maksutov-Cassegrains are very susceptible to dew forming on the front corrector lens. Even a thin layer of condensation can dramatically reduce contrast and sharpness, ruining high-resolution views of planets like Jupiter and Saturn. This heater keeps the corrector clear, ensuring you capture the finest details possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescope Diameter\u003c\/td\u003e\n\u003ctd\u003e160mm - 200mm (Nominal 180mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1170mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772895\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 180mm Diameter Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874363677,"sku":"PLL-PLLFAS180","price":105.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-180mm-diameter-telescopes__07260.1617396031.1280.1280.jpg?v=1684346356"},{"product_id":"primalucelab-dew-heater-for-200mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 200mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 200mm (8\") Diameter Telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents Dew on Corrector Plates and Objective Lenses\u003c\/li\u003e\n\u003cli\u003e12V DC Power with Standard RCA Connector\u003c\/li\u003e\n\u003cli\u003eSeamless Integration with PrimaLuceLab EAGLE\u003c\/li\u003e\n\u003cli\u003eSecure and Uniform Fit with Velcro Fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 200mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 200mm Diameter Telescopes delivers consistent, low-power 12V heating to prevent dew from forming on your primary optics. Designed specifically for optical tubes around 200mm, it's an essential tool for maintaining clear views through refractors and Schmidt-Cassegrains on humid nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Active Heating for 200mm Schmidt-Cassegrains and Refractors\u003c\/h3\u003e\n\u003cp\u003eDew formation on a corrector plate or objective lens can end an imaging or observing session prematurely. Gentle, continuous 12V warmth is applied directly to the optical tube, keeping the glass surface just above the dew point without introducing tube currents. This heater is particularly effective on sealed optical tubes like SCTs and refractors, which are prone to rapid dewing during long exposures or in damp conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEAGLE Integration and Universal 12V RCA Power\u003c\/h3\u003e\n\u003cp\u003eThis heater is designed for seamless integration with the PrimaLuceLab EAGLE, connecting directly to one of its 12V power ports for software-based control. For users without an EAGLE, the standard RCA connector allows it to be powered by any common 12V dew controller or portable battery pack. The secure Velcro and elastic fastening system ensures a snug fit on 200mm optical tubes, delivering uniform heat transfer across the band.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the PrimaLuceLab Dew Heater for my 200mm telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can power it directly from a \u003cstrong\u003ePrimaLuceLab EAGLE\u003c\/strong\u003e computer's 12V output. Alternatively, it uses a standard \u003cstrong\u003eRCA-style plug\u003c\/strong\u003e, making it compatible with most third-party dew heater controllers and 12V DC power supplies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab dew heater fit my 8\" (203mm) SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This heater is designed for telescopes with a diameter of approximately 200mm. The elastic and Velcro fastening system provides a secure fit for common 8\" (203mm) Schmidt-Cassegrain and Newtonian optical tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the PrimaLuceLab Dew Heater on all night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's designed for continuous operation. For best results and power efficiency, it should be connected to a controller (like the EAGLE or a dedicated dew controller) that can regulate the power output based on ambient temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the advantage of using this heater with a PrimaLuceLab EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen connected to an EAGLE, you can control the heater's power output through the EAGLE's software. This allows for automated, temperature-based dew prevention, optimizing power consumption and preventing overheating, all managed from a single control interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this heater necessary for my 200mm Dobsonian reflector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the primary mirror of an open-tube Dobsonian is less prone to dew than a corrector plate, the secondary mirror and eyepieces can still dew up. This heater can be used to warm the upper tube assembly to help protect the secondary, though a separate heater for your eyepieces is also recommended for very damp conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the PrimaLuceLab 200mm Dew Heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is simple. Wrap the heater band around the optical tube, near the front objective lens or corrector plate. Use the integrated Velcro strips to pull it snug for a firm, secure fit that ensures good thermal contact with the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772970\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874396445,"sku":"PLL-PLLFAS200","price":125.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-200mm-diameter-telescopes__26325.1617396031.1280.1280.jpg?v=1684346358"},{"product_id":"primalucelab-dew-heater-for-250mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 250mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits telescopes with 250mm to 300mm tube diameters\u003c\/li\u003e\n\u003cli\u003e12V DC power input via a standard RCA connector\u003c\/li\u003e\n\u003cli\u003eLow 630mA power consumption for efficient operation\u003c\/li\u003e\n\u003cli\u003eSecure and uniform fit with Velcro and elastic fastening\u003c\/li\u003e\n\u003cli\u003eDesigned for direct power and control from the PrimaLuceLab EAGLE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 250mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 250mm Diameter Telescopes applies active, 12V heating to prevent dew formation on your primary optics during long imaging sessions. Its elastic design ensures a secure fit on optical tubes from 250mm to 300mm in diameter, drawing just 630mA of power to keep surfaces clear from condensation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Heating for 250mm to 300mm OTAs\u003c\/h3\u003e\n\u003cp\u003eEngineered for 10-inch to 12-inch class telescopes, this dew heater features an elastic construction that accommodates a range of tube diameters from 250mm to 300mm. A strong Velcro closure ensures the heating element maintains uniform contact with the optical tube, which is critical for preventing dew on the corrector plates of Schmidt-Cassegrains or the objective lenses of large refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e630mA Power Draw with Native EAGLE Integration\u003c\/h3\u003e\n\u003cp\u003eDrawing a modest 630mA, this dew heater is built for efficiency within your imaging power budget. While it can be powered by any standard 12V DC source using its RCA connector, it integrates seamlessly with the PrimaLuceLab EAGLE computer, allowing for direct power and control from one of the EAGLE's regulated ports without extra adapters or controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab Dew Heater fit my 11-inch (280mm) Celestron SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The heater is designed with an elastic band to accommodate optical tubes ranging from \u003cstrong\u003e250mm to 300mm in diameter\u003c\/strong\u003e, making it a perfect fit for a 280mm OTA like a Celestron 11\" Schmidt-Cassegrain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an EAGLE computer. How do I connect this 250mm dew heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis heater is designed for native integration with the EAGLE. Simply plug its \u003cstrong\u003eRCA connector\u003c\/strong\u003e directly into one of the EAGLE's available 12V power output ports. The EAGLE's software can then manage the power supplied to the heater.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the PrimaLuceLab heater if I don't have an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can use any \u003cstrong\u003e12V DC power supply\u003c\/strong\u003e that has an RCA-style output jack. Ensure your power tank or AC adapter can provide at least \u003cstrong\u003e630mA (0.63A)\u003c\/strong\u003e to run the heater effectively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan this PrimaLuceLab dew heater be used on a telescope smaller than 250mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis model is not recommended for tubes smaller than 250mm. The length and elastic tension are optimized for the \u003cstrong\u003e250mm to 300mm range\u003c\/strong\u003e, and using it on a smaller scope may result in a loose fit and inefficient heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab Dew Heater attach to the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater wraps around your telescope's optical tube and secures firmly in place using an integrated \u003cstrong\u003eVelcro strip\u003c\/strong\u003e. The elastic material of the band ensures it stays snug against the tube for even heat distribution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a dew heater essential for a Schmidt-Cassegrain (SCT)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSCTs have a large, exposed front corrector plate that radiates heat into the night sky, causing it to cool below the dew point and fog over. This 250mm dew heater gently warms the corrector, keeping its temperature just above the dew point to ensure your view remains clear all night, which is a more active and reliable solution than a passive dew shield in humid conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Diameter Fit\u003c\/td\u003e\n\u003ctd\u003e250mm to 300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e630mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772963\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 250mm Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874461981,"sku":"PLL-PLLFAS250","price":139.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-250mm-diameter-telescopes__87889.1617396031.1280.1280.jpg?v=1684346359"},{"product_id":"primalucelab-dew-heater-for-280mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 280mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits optical tubes from 280mm to 300mm in diameter\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on primary optics\u003c\/li\u003e\n\u003cli\u003ePowered by 12V DC with an RCA connector\u003c\/li\u003e\n\u003cli\u003eLow power consumption at 630mA\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with PrimaLuceLab EAGLE controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003ePrimaLuceLab Dew Heater for 280mm Diameter Telescopes\u003c\/h2\u003e\n      \u003cp\u003eThe PrimaLuceLab Dew Heater for 280mm Diameter Telescopes provides consistent 12V heating to prevent lens dewing on damp nights. Its elastic construction accommodates optical tubes from 280mm to 300mm in diameter and draws only 630mA, ensuring your optics remain clear without significantly draining your field battery.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e12V, 630mA Heating to Maintain Clear Optics\u003c\/h3\u003e\n      \u003cp\u003eDew formation on a corrector plate or objective lens can prematurely end an observing session, especially with sealed optical tubes like Schmidt-Cassegrains and refractors. This heater gently warms the optics just above the dew point, powered by a standard 12V source with a common RCA connector. The 630mA power draw is efficient enough for all-night operation from a portable power supply.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eFlexible 280-300mm Fit with EAGLE Control\u003c\/h3\u003e\n      \u003cp\u003eDesigned for large-aperture instruments, this dew heater features an elastic band and strong Velcro fastener for a secure, uniform fit on any optical tube between 280mm and 300mm in diameter. While it can be connected to any 12V controller with an RCA output, it is built for direct integration with the PrimaLuceLab EAGLE, allowing you to manage power directly from your central control unit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab Dew Heater fit my Celestron C11 or Meade 10\" SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. A Celestron 11\" (280mm) SCT is at the nominal size for this heater. A Meade 10\" SCT has an outer diameter of approximately 285mm. Since this heater's elastic design accommodates tubes from \u003cstrong\u003e280mm to 300mm\u003c\/strong\u003e, it will provide a secure fit for both instruments.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the PrimaLuceLab 280mm Dew Heater?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater is powered by a \u003cstrong\u003e12V DC\u003c\/strong\u003e source and uses a standard \u003cstrong\u003eRCA-style plug\u003c\/strong\u003e. You can connect it directly to one of the power ports on a PrimaLuceLab EAGLE computer or use any third-party dew controller that has a 12V RCA output.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the temperature of the PrimaLuceLab Dew Heater?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dew heater does not have a built-in controller. The heat output is managed by the device it is plugged into. When connected to a \u003cstrong\u003ePrimaLuceLab EAGLE\u003c\/strong\u003e, you can use the EAGLE Manager software to turn the power port on or off. For variable temperature control, you would need to connect it to a dedicated dew controller with adjustable output.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this PrimaLuceLab heater necessary for imaging planets with my 280mm SCT on a humid night?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. High-resolution planetary imaging requires stable, clear optics. On humid nights, the corrector plate of an SCT can dew over surprisingly quickly, blurring fine details on Jupiter or Saturn. This dew heater prevents that by keeping the glass just above the dew point, ensuring your view remains sharp for the entire imaging session.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of using this dew heater with a PrimaLuceLab EAGLE?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary benefit is system integration and cable management. The EAGLE provides multiple 12V power ports, allowing you to power this dew heater directly from the unit mounted on your telescope. This eliminates the need for a separate dew controller and extra power cables running from the ground up to your optical tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the PrimaLuceLab 280mm heater consume?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe heater has a power consumption of \u003cstrong\u003e630mA\u003c\/strong\u003e (0.63 Amps) at 12V. This is a relatively low draw, allowing for extended use in the field with most portable astronomy power supplies without rapid battery depletion.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSupported Tube Diameter\u003c\/td\u003e\n\u003ctd\u003e280mm to 300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e630mA\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFastening Method\u003c\/td\u003e\n\u003ctd\u003eVelcro and elastic band\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772901\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003ePrimaLuceLab Dew Heater for 280mm Diameter Telescopes\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874560285,"sku":"PLL-PLLFAS280","price":139.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-280mm-diameter-telescopes__51999.1617396032.1280.1280.jpg?v=1684346361"},{"product_id":"primalucelab-dew-heater-for-300mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 300mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Telescopes 300mm to 350mm in Diameter\u003c\/li\u003e\n\u003cli\u003ePrevents Dew on Refractors and SCTs\u003c\/li\u003e\n\u003cli\u003e12V DC Power Input\u003c\/li\u003e\n\u003cli\u003eStandard RCA Connector\u003c\/li\u003e\n\u003cli\u003eVelcro Fastener for Secure Attachment\u003c\/li\u003e\n\u003cli\u003eDesigned for PrimaLuceLab EAGLE Integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 300mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 300mm Diameter Telescopes prevents dew formation on large optics by applying gentle, consistent 12V heat. Its elastic design and Velcro fastener provide a secure fit on optical tubes ranging from 300mm to 350mm in diameter, making it ideal for large refractors and Schmidt-Cassegrains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFlexible Fit for 300mm to 350mm Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eThis dew heater strip wraps securely around any optical tube from 300mm to 350mm in diameter, a common size for large amateur SCTs and refractors. The integrated elastic band and strong Velcro fastener ensure a tight, uniform connection to the tube, maximizing heat transfer and preventing condensation from forming on your objective lens or corrector plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Power with Native EAGLE Integration\u003c\/h3\u003e\n\u003cp\u003eSeamless integration with the PrimaLuceLab EAGLE is built-in, allowing you to power and control the heater directly from one of the EAGLE's power ports. The heater uses a standard 12V DC input via an RCA connector, making it universally compatible with most third-party dew heater controllers and portable 12V power supplies used in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab Dew Heater fit my 12\" (305mm) SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This dew heater is designed for optical tubes with diameters from \u003cstrong\u003e300mm to 350mm\u003c\/strong\u003e. A 12-inch (305mm) Schmidt-Cassegrain falls perfectly within this range, and the elastic band and Velcro will ensure a snug fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the PrimaLuceLab Dew Heater if I don't have an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can power this dew heater with any standard \u003cstrong\u003e12V DC power source\u003c\/strong\u003e that has an RCA-style output jack. This includes most dew controller systems from other manufacturers and many portable field batteries designed for astronomy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this PrimaLuceLab Dew Heater suitable for my 14\" (355mm) Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile a 14\" (355mm) tube is slightly outside the recommended maximum of \u003cstrong\u003e350mm\u003c\/strong\u003e, it may still fit, though the Velcro connection might be less secure. More importantly, this type of heater is most effective on sealed tubes like SCTs and refractors. Open-truss Dobsonians are less prone to dew on the primary mirror but may require a separate, smaller heater for the secondary mirror.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab Dew Heater attach to the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater attaches using a combination of a built-in \u003cstrong\u003eelastic band\u003c\/strong\u003e for flexibility and a strong \u003cstrong\u003eVelcro fastener\u003c\/strong\u003e. This system allows for easy installation and removal while providing a firm, continuous contact with the optical tube for efficient heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the PrimaLuceLab Dew Heater on all night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is designed for continuous operation throughout an observing or imaging session. However, like any heating element, it consumes power, which is a consideration if you are running your setup on a limited-capacity field battery. Using it with a controller that can regulate the power output is recommended for efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of using the PrimaLuceLab Dew Heater with an EAGLE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is seamless integration. You can plug the heater directly into one of the \u003cstrong\u003eEAGLE's regulated 12V power ports\u003c\/strong\u003e and control its output through the EAGLE's software interface. This centralizes your power and device management, reducing cable clutter and simplifying your astrophotography setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Diameter Fit\u003c\/td\u003e\n\u003ctd\u003e300mm - 350mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772956\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874625821,"sku":"PLL-PLLFAS300","price":153.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-300mm-diameter-telescopes__34891.1617396032.1280.1280.jpg?v=1684346363"},{"product_id":"primalucelab-dew-heater-for-350mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 350mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for telescopes with 350mm to 360mm tube diameters\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on primary optics\u003c\/li\u003e\n\u003cli\u003ePowered by 12V DC via a standard RCA connector\u003c\/li\u003e\n\u003cli\u003eDraws 1800mA for effective heating\u003c\/li\u003e\n\u003cli\u003eIntegrates directly with PrimaLuceLab EAGLE control units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 350mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 350mm Diameter Telescopes applies 1800mA of consistent 12V power to prevent condensation on large optics. Designed with an elastic fix for tubes from 350mm to 360mm in diameter, it ensures your Schmidt-Cassegrain or refractor remains clear even on the dampest nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eActive Dew Prevention for 350mm to 360mm Telescopes\u003c\/h3\u003e\n\u003cp\u003eDew formation on a large corrector plate or objective lens can end an imaging or observing session prematurely. This dew heater provides active, gentle heat directly to your optical tube, raising the surface temperature just enough to prevent condensation from forming without introducing tube currents.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward thanks to a strong Velcro closure that ensures a secure, uniform fit. An integrated elastic section allows the heater to conform perfectly to optical tubes ranging from 350mm to 360mm in diameter, maintaining constant contact for efficient heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V Power with Full EAGLE Integration\u003c\/h3\u003e\n\u003cp\u003eEngineered for the PrimaLuceLab ecosystem, this dew heater connects directly to one of the EAGLE's power ports, allowing for software control of its heat output. This integration centralizes your power and control, eliminating extra cables and separate controllers from your setup.\u003c\/p\u003e\n\u003cp\u003eFor those not using an EAGLE, the heater features a standard RCA connector, making it compatible with most third-party 12V dew controllers or a direct connection to a 12V power source. With a power draw of 1800mA, it provides ample heating power for large optics in challenging conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the PrimaLuceLab Dew Heater on my 14-inch (355mm) SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is simple. Wrap the \u003cstrong\u003ePrimaLuceLab 350mm Dew Heater\u003c\/strong\u003e around the main optical tube, just behind the front corrector plate cell. The elastic band will ensure a snug fit on your 14-inch (355mm) tube. Secure it firmly using the integrated Velcro strip to ensure good contact with the tube for optimal heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I power the PrimaLuceLab 350mm Dew Heater from my field battery while imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003ePrimaLuceLab 350mm Dew Heater\u003c\/strong\u003e is designed to run on a standard 12V DC power source, which is typical for field batteries used in astronomy. It connects via a common RCA plug. Drawing 1800mA, it's an efficient solution for all-night imaging sessions of large targets like the Andromeda Galaxy (M31).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a PrimaLuceLab EAGLE to use this 350mm dew heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While the \u003cstrong\u003ePrimaLuceLab 350mm Dew Heater\u003c\/strong\u003e is designed for seamless integration with the EAGLE's power and control software, it is not required. The heater uses a standard RCA-type 12V power connector, making it compatible with virtually any dew controller or 12V power tank on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the PrimaLuceLab 350mm Dew Heater better than a passive dew shield?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA dew shield can delay the formation of dew, but in high-humidity conditions, it will eventually cool to the dew point. The \u003cstrong\u003ePrimaLuceLab 350mm Dew Heater\u003c\/strong\u003e provides active heating to keep the optics' temperature consistently above the dew point, offering a guaranteed solution that works all night, regardless of humidity levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this PrimaLuceLab 350mm dew heater get too hot and affect my telescope's image quality?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The heater is designed to provide low, gentle warmth. When used with a controller (like the EAGLE or a third-party unit), you can regulate the power to apply just enough heat to prevent dew, without introducing heat waves or tube currents that could degrade image sharpness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Velcro on the PrimaLuceLab 350mm Dew Heater hold up in cold weather?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe materials used in the \u003cstrong\u003ePrimaLuceLab 350mm Dew Heater\u003c\/strong\u003e, including the Velcro fastener, are selected for reliable outdoor use in typical nighttime observing temperatures. The Velcro provides a strong, secure closure that will not fail or become brittle in the cold.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescope Diameter\u003c\/td\u003e\n\u003ctd\u003e350mm to 360mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1800mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Connector\u003c\/td\u003e\n\u003ctd\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eVelcro with elastic strap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772888\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater for 350mm Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967874658589,"sku":"PLL-PLLFAS350","price":153.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-350mm-diameter-telescopes__52665.1617396033.1280.1280.jpg?v=1684346365"},{"product_id":"primalucelab-dew-heater-for-450mm-diameter-telescopes","title":"PrimaLuceLab Dew Heater for 450mm Diameter Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for telescopes with approximately 450mm tube diameters\u003c\/li\u003e\n\u003cli\u003eActively warms optics to prevent dew formation\u003c\/li\u003e\n\u003cli\u003eFlexible design with elastic and Velcro for a secure fit\u003c\/li\u003e\n\u003cli\u003eIntegrates directly with PrimaLuceLab EAGLE power ports\u003c\/li\u003e\n\u003cli\u003eCompatible with standard 12V power sources via an RCA connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003ePrimaLuceLab Dew Heater for 450mm Diameter Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe PrimaLuceLab Dew Heater for 450mm Diameter Telescopes, identified by EAN code 8059020772871, provides a reliable solution to one of astrophotography's most persistent problems: condensation. By applying gentle, continuous heat directly to your optical tube, this band stops dew from forming on your corrector plate or objective lens, ensuring your imaging or observing session isn't cut short by falling temperatures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDefeating Dew on Large Schmidt-Cassegrains and Refractors\u003c\/h3\u003e\n\u003cp\u003eDew formation is especially problematic for telescopes with large, exposed optical surfaces, such as the corrector plates on Schmidt-Cassegrain telescopes or the objective lenses on large refractors. This dew heater band is sized specifically for these large-aperture instruments, wrapping securely around the optical tube to warm the glass just above the dew point.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward thanks to a strong Velcro fastener, and an integrated elastic section ensures a snug, consistent fit on tubes with diameters from 450mm to 460mm. This uniform contact is critical for even heat distribution and efficient dew prevention throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Integration with EAGLE or Standard 12V RCA Power\u003c\/h3\u003e\n\u003cp\u003eThis dew heater is designed to be a native component of the PrimaLuceLab ecosystem. It connects directly to one of the power output ports on any EAGLE computer, allowing you to control power delivery through the EAGLE's software interface without extra cables or controllers.\u003c\/p\u003e\n\u003cp\u003eFor users without an EAGLE, the heater also features a standard RCA-style connector, making it compatible with most third-party dew controllers or any 12V DC power source that uses this common connection. This dual compatibility ensures the heater can be integrated into nearly any existing telescope setup. A separate power source or controller is required for operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat types of telescopes is the PrimaLuceLab 450mm Dew Heater designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dew heater is ideal for large telescopes with an optical tube diameter between \u003cstrong\u003e450mm and 460mm\u003c\/strong\u003e. It is particularly effective on Schmidt-Cassegrain (SCT), Maksutov-Cassegrain, and large refractor telescopes, where a large, forward-facing lens or corrector plate is highly susceptible to dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the PrimaLuceLab Dew Heater attach to a telescope like an 18\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater attaches using a combination of \u003cstrong\u003eVelcro and an elastic band\u003c\/strong\u003e. You simply wrap the band around the front of the optical tube, near the objective lens or corrector plate, and secure it with the Velcro. The elastic section ensures a tight, continuous contact with the tube, which is essential for efficient heat transfer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a PrimaLuceLab EAGLE to use this dew heater?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While it is designed for seamless integration with the \u003cstrong\u003eEAGLE's built-in power ports\u003c\/strong\u003e, it is not required. The dew heater uses a standard \u003cstrong\u003eRCA power connector\u003c\/strong\u003e, allowing it to be plugged into many third-party dew controllers or any 12V DC power supply with a compatible output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this dew heater prevent condensation on my optics?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater contains a resistive element that generates a small amount of heat when powered. This gently warms the metal and glass of the telescope's front cell, keeping the optical surface temperature just slightly above the ambient dew point. This prevents airborne water vapor from condensing into dew on the cold glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the PrimaLuceLab 450mm Dew Heater fit my telescope tube if it's not exactly 450mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it has some flexibility. Thanks to its elasticated section, this dew heater is designed to provide a secure fit on optical tubes with diameters ranging from \u003cstrong\u003e450mm to 460mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power connector does the PrimaLuceLab Dew Heater use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe heater is equipped with a male \u003cstrong\u003eRCA-style connector\u003c\/strong\u003e. This is a common standard for 12V astronomy accessories, ensuring wide compatibility with various power sources and dew controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN Code\u003c\/td\u003e\n\u003ctd\u003e8059020772871\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePrimaLuceLab Dew Heater for 450mm Diameter Telescopes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/primalucelab-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003ePrimaLuceLab 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PrimaLuceLab","offers":[{"title":"Default Title","offer_id":44967877050653,"sku":"PLL-PLLFAS450","price":167.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/PrimaLuceLab-Dew-heater-for-450mm-diameter-telescopes__12407.1617396033.1280.1280.jpg?v=1684346366"},{"product_id":"celestron-dew-heater-ring-5","title":"Celestron Dew Heater Ring - 5\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePermanently mounts to 5\" Schmidt-Cassegrain telescopes\u003c\/li\u003e\n\u003cli\u003eDirectly heats the corrector lens for maximum efficiency\u003c\/li\u003e\n\u003cli\u003eDraws a maximum of 7 watts at 12V DC\u003c\/li\u003e\n\u003cli\u003eLightweight 46.3 g (1.63 oz) aluminum construction\u003c\/li\u003e\n\u003cli\u003eIntegrated thermistor for smart control with Celestron controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 5\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 5\" Schmidt-Cassegrains provides a continuous 7 watts of power directly to your corrector plate, preventing dew formation during critical observing and imaging sessions. Its rigid aluminum frame has a precise 127.3mm inner diameter that replaces the telescope's original plastic retaining ring, ensuring the most efficient heat transfer possible from its 12V DC input. Weighing just 46.3 g, it adds minimal mass to the front of your optical tube while offering a permanent, integrated solution to combat dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEfficient Dew Prevention: Direct 127.3mm Corrector Heating\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional heater strips that warm the telescope's metal cell and hope the heat transfers inward, this Dew Heater Ring heats the Schmidt corrector glass directly. This method is far more efficient, using its 7 watts of power to keep the glass just above the dew point without wasting energy. The ring's 127.3mm inner diameter ensures perfect contact and uniform heating across the entire surface of your 5\" SCT's corrector lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePermanent Integration: A 46.3 g Aluminum Ring Design\u003c\/h3\u003e\n\u003cp\u003eEngineered as a permanent, set-and-forget accessory, the Celestron Dew Heater Ring replaces your telescope's factory retaining ring. The lightweight aluminum construction adds only 46.3 g (1.63 oz) to your setup, having no meaningful impact on balance. Integrated clips secure the power and thermistor jacks when not in use, allowing the original dust cover to fit perfectly, while an included cable management clip prevents snags or accidental pulls on the connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e7W Power with Integrated Thermistor Control\u003c\/h3\u003e\n\u003cp\u003eThe ring operates on a standard 12V DC input via a 5.5mm\/2.1mm barrel connector, drawing a maximum of 7 watts. For ultimate power efficiency, it features a built-in thermistor compatible with Celestron's Smart DewHeater Controllers. This allows the controller to monitor the exact temperature of the corrector lens and apply only the necessary power, dramatically extending the life of your field battery. A 6\" extension cable is included to ensure a clean connection to any controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCelestron Dew Heater Ring vs. Traditional Heater Bands\u003c\/h3\u003e\n\u003cp\u003eFor owners of 5\" SCTs, the choice between this integrated ring and a generic heater strap comes down to efficiency and convenience.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Method:\u003c\/strong\u003e Traditional bands heat the exterior lens cell, leading to significant heat loss and inefficient warming of the glass. The Celestron ring's direct contact with the 127.3mm corrector provides immediate and targeted heat where it's needed most.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegration:\u003c\/strong\u003e Heater straps must be wrapped and unwrapped for every session. The Dew Heater Ring is a permanent installation, meaning it's always ready to go and you can't forget it at home.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Control:\u003c\/strong\u003e While some straps can be used with controllers, the ring's integrated thermistor offers a level of precision that external sensors cannot match, resulting in lower power consumption and clearer optics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron Dew Heater Ring required for my 5\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile not required for the telescope to function, a dew heater is an essential accessory for observing or imaging in any climate with moderate to high humidity. It is the only reliable way to prevent moisture from condensing on your corrector plate, which can end an observing session prematurely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 5\" Dew Heater Ring without a controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You can plug the ring directly into any 12V DC power source with a 5.5mm\/2.1mm tip-positive connector. In this mode, it will run continuously at its maximum 7-watt power setting. A controller is recommended to optimize power consumption and prevent over-heating the optics, but is not mandatory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 7-watt power draw affect my portable battery life on a NexStar 5SE?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt 7 watts, the ring draws approximately 0.58 amps from a 12V source. When used with a Celestron Smart DewHeater Controller, the average power draw is often much lower, as the controller only applies heat when needed. This makes it a very efficient solution for portable battery packs, allowing for many hours of protection without significant battery drain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill installing the 5\" Dew Heater Ring void my telescope's warranty?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Celestron Dew Heater Ring is an official, Celestron-designed accessory. The installation process of replacing the stock retaining ring is fully supported and will not affect your telescope's warranty when the instructions are followed correctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the built-in thermistor compatible with third-party dew controllers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe integrated thermistor is specifically designed for and only compatible with Celestron SmartHeat Dew Controllers. However, you can still power the heater ring itself using a third-party controller; you just won't be able to use the temperature-sensing feedback function.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Dew Heater Ring perform on a humid night imaging the Orion Nebula (M42) with my 5\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is precisely the scenario the ring is designed for. On a humid night, your corrector lens is a prime surface for dew, which can blur faint details in M42. The ring's direct heating will keep the corrector clear for hours, ensuring sharp stars and maximum contrast on the nebula's faint outer structures throughout your entire imaging sequence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e5\" Schmidt-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e7 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e127.3mm (5.01\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e146mm (5.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.63 oz (46.3 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack Extension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm barrel connector to male RCA connector, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 5\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Dew_Heater_Ring_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967981875485,"sku":"CEL-94055","price":60.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-5-inch-94055-1__91548.1644001247.1280.1280.jpg?v=1684347524"},{"product_id":"celestron-dew-heater-ring-6","title":"Celestron Dew Heater Ring - 6\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eMaintains clear optics on your 6\" Schmidt-Cassegrain\u003c\/li\u003e\n\u003cli\u003eDelivers up to 12 watts of direct heating power\u003c\/li\u003e\n\u003cli\u003eDurable aluminum ring with a 153.4mm inner diameter for a perfect fit\u003c\/li\u003e\n\u003cli\u003eIntegrated 2.5mm thermistor jack for smart control\u003c\/li\u003e\n\u003cli\u003ePowered by a standard 12V DC, 5.5mm\/2.1mm barrel connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 6\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 6\" Schmidt-Cassegrains provides up to 12 watts of power directly to your corrector plate for efficient dew prevention. Its lightweight aluminum construction weighs just 2.19 oz (62.2 g) and features a precise 153.4mm inner diameter that replaces the telescope's stock retaining ring. Power is delivered via a standard 12V DC barrel connector, and an integrated 2.5mm audio jack allows for intelligent temperature control with Celestron SmartHeat controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Corrector Heating at 12 Watts\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional heater strips that warm the telescope's metal cell, the Celestron Dew Heater Ring's circuit is in direct contact with the glass. This method is far more efficient, applying its 12 watts of heating power to the corrector plate to keep the surface just above the dew point. This direct heating approach consumes less power and responds faster to changing conditions, ensuring a clear field of view throughout your session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e153.4mm Anodized Aluminum Ring: A Permanent Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for a perfect fit, the ring's 153.4mm inner diameter and 176mm outer diameter allow it to permanently replace the plastic retaining ring on a 6\" SCT. This integrated design means you never have to worry about forgetting your dew heater or dealing with cumbersome straps. The rigid aluminum frame not only houses the heating element but also safely supports the Schmidt corrector lens, all while adding a minimal 2.19 oz to your optical tube.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Cable Management:\u003c\/strong\u003e Two storage clips secure the power and thermistor jacks when not in use, allowing the dust cover to fit perfectly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e An included clip corrals the power cables, preventing snags or accidental disconnection during operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Power and Smart Controller Integration\u003c\/h3\u003e\n\u003cp\u003eThe ring operates on a standard 12V DC input using a 5.5mm\/2.1mm barrel connector, making it compatible with most field batteries. For maximum efficiency, the built-in thermistor connects to Celestron's SmartHeat Dew Controllers via a 2.5mm audio jack. This allows the controller to monitor the corrector's exact temperature and apply power only when needed, significantly extending battery life compared to a constantly-on system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Power Options:\u003c\/strong\u003e A 6\" extension cable is included, terminating in a male RCA connector for compatibility with various third-party controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermistor Compatibility:\u003c\/strong\u003e While the power input is universal, the integrated thermistor is designed specifically for the Celestron SmartHeat Controller ecosystem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the 6\" Dew Heater Ring use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring has a maximum power draw of 12 watts. When connected to a Celestron SmartHeat Dew Controller, the actual power consumption is often much lower, as the controller only applies heat when the built-in thermistor detects a risk of dew formation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Celestron Dew Heater Ring fit my non-Celestron 6\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is specifically designed to replace the retaining ring on Celestron 6\" Schmidt-Cassegrain telescopes, with an inner diameter of 153.4mm (6.04\"). Compatibility with other brands is not guaranteed, as their corrector cell dimensions may differ.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the thermistor with a third-party dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the integrated thermistor is only compatible with Celestron SmartHeat Dew Controllers. However, you can still power the heating element with a third-party controller using the included power jack extension cable; you just won't have the benefit of the temperature feedback.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs installing the 6\" Dew Heater Ring difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe installation is straightforward and involves carefully unscrewing the existing retaining ring on your 6\" SCT and replacing it with the Dew Heater Ring. A paper installation shield is included to protect the corrector lens during the process. Always follow the detailed instructions in the user manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the Celestron Dew Heater Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need an external 12V DC power source, such as a portable battery pack or AC adapter, that can supply power through a 5.5mm\/2.1mm barrel connector (tip positive). The ring itself draws a maximum of 12 watts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eFor a night of imaging M27, the Dumbbell Nebula, do I still need a dew shield with this ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile not mandatory, using a dew shield is highly recommended. The shield reduces the corrector's exposure to the cold night sky, which in turn lessens the amount of power the Dew Heater Ring needs to use to prevent dew. This improves power efficiency and extends your battery life during a long imaging session on targets like M27.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e6\" Schmidt-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e12 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e153.4mm (6.04\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e176mm (6.93\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.19 oz (62.2 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack Extension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm to male RCA connector, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Celestron Dew Heater Ring for 6-inch SCT\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Heater-Ring-6-inch.jpg?v=1792759972\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 6\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Cable Management Clip\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Heater-Ring-Cable-Clip.jpg?v=1792759972\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Power Jack Extension Cable\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Heater-Ring-Extension-Cable.jpg?v=1792759972\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Paper Installation Shield\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Dew-Heater-Ring-Installation-Shield.jpg?v=1792759972\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Dew_Heater_Ring_Manual.pdf?v=1792760235\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Dew Heater Ring Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967981973789,"sku":"CEL-94050","price":64.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-6-inch-94050-1__33732.1644001464.1280.1280.jpg?v=1684347517"},{"product_id":"celestron-dew-heater-ring-8","title":"Celestron Dew Heater Ring - 8\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePermanently mounts to 8\" SCT, EdgeHD, and RASA telescopes\u003c\/li\u003e\n\u003cli\u003eDirectly heats corrector glass for maximum efficiency\u003c\/li\u003e\n\u003cli\u003e20 watts of heating power prevents dew in all conditions\u003c\/li\u003e\n\u003cli\u003eIntegrated thermistor for smart control with Celestron controllers\u003c\/li\u003e\n\u003cli\u003eLightweight 3.05 oz (86.5 g) aluminum construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 8\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 8\" telescopes is a permanent, integrated dew prevention system that delivers up to 20 watts of power directly to your corrector plate. This lightweight, 86.5 g aluminum ring replaces the stock retaining ring on your 8\" Schmidt-Cassegrain, EdgeHD, or RASA, providing the most efficient heat transfer possible by warming the glass itself. Powered by an external 12V DC source, it ensures your optics remain clear all night, every night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Corrector Heating: A 20-Watt Permanent Dew Solution\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional heater strips that warm the lens cell and waste energy, the Celestron Dew Heater Ring's aluminum frame makes direct contact with the corrector lens. This method provides a highly efficient and uniform transfer of heat with a maximum power of 20 watts, preventing dew from forming even on the most humid nights. Because it replaces your telescope's original plastic retaining ring, it becomes a permanent part of your optical tube—ready for any observing session without extra setup time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Power and Data: 12V DC Input and 2.5mm Thermistor Output\u003c\/h3\u003e\n\u003cp\u003eThe ring is powered by a standard 12V DC barrel connector (5.5mm\/2.1mm, tip positive), a common interface for astronomy accessories. A 6\" extension cable is included to adapt the power jack to a male RCA connector, offering flexibility with various power sources and dew controllers. An integrated thermistor with a 2.5mm audio jack output allows the ring to feed real-time temperature data to a Celestron SmartHeat Dew Controller, enabling precise, automated power management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Integration: 86.5g Aluminum Ring with Cable Management\u003c\/h3\u003e\n\u003cp\u003eEngineered for a perfect fit, the durable aluminum ring weighs just 3.05 oz (86.5 g), adding negligible weight to your optical assembly. The design incorporates two built-in storage clips that neatly secure the power and thermistor jacks when not in use, allowing the telescope's original dust cover to fit perfectly. An included cable management clip attaches to the front cell, preventing the power cords from dangling and placing strain on the connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSmart Control Ready: Maximize Efficiency with Celestron Controllers\u003c\/h3\u003e\n\u003cp\u003eFor optimal power efficiency and battery life, pair the Dew Heater Ring with a Celestron SmartHeat Dew Controller (sold separately). The controller utilizes the ring's built-in thermistor to apply the precise amount of power needed based on corrector temperature and ambient conditions. This intelligent system dramatically reduces power consumption compared to a continuous-on state. While the ring works with any 12V DC source, the thermistor function is exclusively compatible with Celestron SmartHeat controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the Celestron Dew Heater Ring over a standard heater strip for my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is \u003cstrong\u003eefficiency\u003c\/strong\u003e. The ring heats the corrector glass directly, preventing dew with less power and more uniformity than a strip that heats the metal lens cell. It also becomes a permanent part of your telescope, so you never have to wrap, unwrap, or forget it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a special controller to use the 8\" Dew Heater Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, you can power the ring directly from any 12V DC power source with a 5.5mm\/2.1mm barrel connector. However, to use the built-in thermistor for automated, power-saving operation, you must use a Celestron SmartHeat Dew Controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 8\" Dew Heater Ring fit under my telescope's dust cover?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ring is designed with two storage clips that hold the power and thermistor jacks securely out of the way, allowing the original dust cover to be placed on the telescope as usual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an 8\" EdgeHD telescope. Is the installation difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe installation is straightforward and designed to be done once. It involves carefully removing the telescope's existing retaining ring and replacing it with the Dew Heater Ring. Following the included manual and using the paper installation shield ensures a quick and safe process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew Heater Ring use on a humid night with my Celestron RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring has a \u003cstrong\u003emaximum power draw of 20 watts\u003c\/strong\u003e. When connected directly to a 12V DC source, it will run continuously at this power. When used with a SmartHeat Dew Controller, the power draw will be significantly less, as the controller will cycle the power on and off to maintain a temperature just above the dew point, conserving battery life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the built-in thermistor on the Dew Heater Ring with my third-party dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The integrated thermistor and its 2.5mm jack are specifically designed to be compatible only with Celestron SmartHeat Dew Controllers. You can still power the ring's heating element with a third-party controller, but you will not be able to use the temperature-sensing feature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e8\" Schmidt-Cassegrain, EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e203.2mm (8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e225.6mm (8.88\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.05 oz (86.5 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e20 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack (For Celestron SmartHeat Dew Controllers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm to male RCA connector, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 8\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Dew_Heater_Ring_Manual.pdf?v=1782186855\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Dew Heater Ring Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967982072093,"sku":"CEL-94051","price":78.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-8-inch-94051-1__06569.1646854646.1280.1280.jpg?v=1684347524"},{"product_id":"celestron-dew-heater-ring-9-25","title":"Celestron Dew Heater Ring - 9.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for Celestron 9.25\" Schmidt-Cassegrain and EdgeHD telescopes\u003c\/li\u003e\n\u003cli\u003eDelivers up to 24 watts of heating power directly to the corrector lens\u003c\/li\u003e\n\u003cli\u003eLightweight and durable aluminum ring construction weighs only 4.14 oz\u003c\/li\u003e\n\u003cli\u003eFeatures a standard 12V DC barrel connector for power\u003c\/li\u003e\n\u003cli\u003eIntegrated thermistor for smart control with Celestron controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 9.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 9.25\" telescopes provides a permanent, efficient solution to dew, delivering up to 24 watts of power directly to your corrector plate. Constructed from rigid aluminum, this ring draws power from a standard 12V DC source and seamlessly replaces the original plastic retaining ring on your Schmidt-Cassegrain or EdgeHD optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Corrector Heating: 24 Watts for Maximum Efficiency\u003c\/h3\u003e\n\u003cp\u003eUnlike conventional heater straps that warm the lens cell and hope the heat transfers inward, the Celestron Dew Heater Ring heats the corrector glass directly. This method provides the most efficient heat transfer possible, applying its full 24 watts of power where it matters most to prevent dew from ever forming. This direct contact ensures clear optics even on nights with heavy dew, using less power than less efficient methods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePermanent Fit for 9.25\" SCT \u0026amp; EdgeHD Telescopes\u003c\/h3\u003e\n\u003cp\u003eEngineered for a perfect fit, the aluminum Dew Heater Ring replaces the factory retaining ring on your 9.25\" Celestron Schmidt-Cassegrain or EdgeHD telescope. This integrated design means it becomes a permanent part of your optical tube, so it's always ready when you need it. The rigid 4.14 oz frame not only supports the heating circuits but also securely holds the corrector lens, maintaining optical alignment. Thoughtful features include storage clips for the power and thermistor jacks and a cable management clip to prevent snags.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSmart Control Ready with 12V DC Power and Thermistor\u003c\/h3\u003e\n\u003cp\u003ePowering the ring is simple via a common 12V DC barrel connector. For optimal power management, the ring includes an integrated thermistor compatible with Celestron's SmartHeat Dew Controllers. When connected, the controller uses temperature and humidity data to apply the precise amount of power needed, dramatically extending battery life in the field. A 6\" power jack extension cable is included for connecting to controllers or other power sources.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 9.25\" Dew Heater Ring install on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring is designed to permanently replace the existing plastic retaining ring on the front of your 9.25\" SCT or EdgeHD telescope. The installation process is straightforward and involves carefully removing the old ring and securing the new heater ring in its place, which then also holds your corrector lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Dew Heater Ring work with a third-party dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the heating element can be powered by any controller that provides 12V DC through a compatible RCA-style plug (using the included extension cable). However, the integrated thermistor function is only compatible with Celestron SmartHeat Dew Controllers via its 2.5mm audio jack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply do I need for the Celestron 9.25\" Dew Heater Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need an external 12V DC power source with a 5.5mm\/2.1mm, tip-positive barrel connector. This can be a portable battery pack like a Celestron PowerTank, a dedicated dew controller power port, or an AC adapter if you are observing from home.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a dew shield still necessary with the 9.25\" Dew Heater Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile not mandatory, using a dew shield is highly recommended. A dew shield reduces the rate of cooling on the corrector plate by blocking it from the open sky. This significantly decreases the amount of power the 24-watt heater ring needs to use to keep the glass clear, saving battery life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I leave the Dew Heater Ring on my 9.25\" EdgeHD when I put the dust cover on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The ring is designed to live on the telescope permanently. It includes two integrated storage clips that securely hold the power and thermistor jacks, allowing the telescope's original dust cover to fit perfectly over the top.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the Dew Heater Ring draw on my CPC 925?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring has a maximum power draw of 24 watts. When used with a simple 12V DC source, it will run continuously at this power. When paired with a Celestron SmartHeat Dew Controller, the power draw will be variable and much lower on average, as the controller only provides enough energy to keep the corrector just above the dew point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e9.25\" Schmidt-Cassegrain, EdgeHD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e24 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e235mm (9.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e261.1mm (10.28\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.14 oz (117.5 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack Extension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm barrel to male RCA, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 9.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.celestron.com\/pages\/drivers-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967982104861,"sku":"CEL-94052","price":114.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-9-25-inch-94052-1__71871.1644002421.1280.1280.jpg?v=1684347530"},{"product_id":"celestron-dew-heater-ring-11","title":"Celestron Dew Heater Ring - 11\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for 11\" Celestron SCT, EdgeHD, and RASA telescopes\u003c\/li\u003e\n\u003cli\u003eDelivers up to 30 watts of direct heating to the corrector plate\u003c\/li\u003e\n\u003cli\u003eConnects via a standard 12V DC barrel connector (5.5mm\/2.1mm)\u003c\/li\u003e\n\u003cli\u003eIntegrated thermistor for smart control with Celestron controllers\u003c\/li\u003e\n\u003cli\u003eLightweight 4.69 oz aluminum construction replaces the original retaining ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 11\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 11\" telescopes provides a permanent, highly efficient dew prevention solution, delivering up to 30 watts of power directly to your corrector lens. Constructed from lightweight aluminum weighing just 4.69 oz, it replaces the factory retaining ring on your 11\" Schmidt-Cassegrain, EdgeHD, or RASA optical tube. Power is supplied through a standard 12V DC barrel connector, and an integrated thermistor with a 2.5mm audio jack enables intelligent power management when paired with a Celestron SmartHeat Dew Controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Corrector Heating: An Efficient 30-Watt Dew Solution\u003c\/h3\u003e\n\u003cp\u003eThis ring's core advantage is its method of heat transfer. Unlike traditional heater strips that warm the telescope's metal cell and hope the heat radiates inward, the aluminum Dew Heater Ring is in direct contact with the corrector glass. This provides the most efficient heating possible, applying its 30 watts of power exactly where needed to keep your optics clear all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Power with Smart Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe system runs on a common 12V DC input using a 5.5mm\/2.1mm barrel connector, making it compatible with most field power supplies. For maximum power efficiency, the ring features a built-in thermistor that connects to Celestron's SmartHeat Dew Controllers via a 2.5mm audio jack. This allows the controller to monitor the exact temperature of the glass and apply only the necessary power, dramatically extending battery life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePermanent Fit for 11\" Celestron SCT, EdgeHD, and RASA OTAs\u003c\/h3\u003e\n\u003cp\u003eDesigned as a true integrated accessory, the Dew Heater Ring replaces the plastic retaining ring on Celestron 11\" optical tubes manufactured in 2006 or later. With an inner diameter of 279.4mm (11\"), it provides a secure, permanent fit so you never have to worry about forgetting your dew heater. The rigid aluminum frame supports both the heating circuits and the corrector lens itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Cable Management for Tangle-Free Operation\u003c\/h3\u003e\n\u003cp\u003eTo prevent cable snags and dangling wires, the ring incorporates several thoughtful features. Two storage clips hold the power and thermistor jacks securely when not in use, allowing the dust cover to fit perfectly. A separate cable management clip attaches to the front cell, routing the power and thermistor cables neatly away from the optical path to prevent unwanted tugs on the connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCelestron Dew Heater Ring vs. Traditional Heater Bands\u003c\/h3\u003e\n\u003cp\u003eThe primary difference lies in efficiency and integration. A traditional band wraps around the outside of the optical tube's front cell, wasting energy heating the metal housing first. The Celestron Dew Heater Ring heats the corrector glass directly for a faster response and lower power consumption.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating Method:\u003c\/strong\u003e The Ring offers direct glass heating, while bands use indirect cell heating. This makes the Ring more effective in heavy dew.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegration:\u003c\/strong\u003e The Ring is a permanent, \"set-and-forget\" installation. Bands are temporary and must be wrapped around the telescope for each session, risking uneven placement or slipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Control:\u003c\/strong\u003e The Ring's integrated thermistor provides precise temperature data for smart controllers, a feature absent in most basic heater bands.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Celestron Dew Heater Ring fit my non-Celestron 11\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is specifically designed to replace the corrector plate retaining ring on Celestron 11\" Schmidt-Cassegrain, EdgeHD, and RASA telescopes made in 2006 or later. It is not designed for compatibility with telescopes from other manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the 11\" Dew Heater Ring actually use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring has a maximum power draw of 30 watts when operating at 100%. However, when used with a Celestron SmartHeat Dew Controller, its actual consumption is often much lower. The controller uses the ring's thermistor to apply just enough power to stay above the dew point, significantly saving battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Dew Heater Ring with a third-party dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can power the heater element with a third-party controller. The included 6\" power jack extension cable adapts the 5.5mm\/2.1mm barrel connector to a male RCA plug, which is common on many controllers. However, the integrated thermistor's 2.5mm jack is only compatible with Celestron SmartHeat Dew Controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs installing the 11\" Dew Heater Ring difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe process is straightforward and involves unscrewing the existing plastic retaining ring and screwing on the Dew Heater Ring in its place. Celestron provides a paper installation shield and detailed manual instructions to make the process quick and safe for your corrector lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I still need a dew shield with the Celestron Dew Heater Ring on my 11\" EdgeHD?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile not mandatory, using a dew shield is highly recommended. A dew shield reduces the rate at which the corrector lens radiates heat into the night sky. This reduces the overall power required by the heater ring to keep the optics clear, further improving the power efficiency of your entire imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 4.69 oz weight of the ring affect my telescope's balance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 4.69 oz (133.0 g) weight is very minimal and replaces the weight of the original plastic retaining ring. For an 11\" class optical tube, this small change in weight at the very front of the scope will have a negligible effect on balance and is easily compensated for by slightly adjusting the OTA's position on the dovetail bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e11\" Schmidt-Cassegrain, EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e30 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack Extension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm barrel connector to male RCA connector, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e279.4mm (11\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e305.3mm (12.02\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.69 oz (133.0 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 11\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/s3.amazonaws.com\/celestron-site-support-files\/support_files\/dew_heater_ring_5_6_8_925_11_14_manual_multi_web.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Dew Heater Ring Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967986266397,"sku":"CEL-94053","price":146.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-11-inch-94053-1__69292.1644002603.1280.1280.jpg?v=1684347591"},{"product_id":"celestron-dew-heater-ring-14","title":"Celestron Dew Heater Ring - 14\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eMaintains clear optics by directly heating your 14\" corrector plate\u003c\/li\u003e\n\u003cli\u003eDelivers up to 52 watts of heating power for use in heavy dew conditions\u003c\/li\u003e\n\u003cli\u003eRigid aluminum construction replaces the telescope's retaining ring for a permanent, perfect fit\u003c\/li\u003e\n\u003cli\u003eIntegrated thermistor provides precise temperature data to Celestron Smart DewHeater Controllers\u003c\/li\u003e\n\u003cli\u003ePowered by a standard 12V DC, 5.5mm\/2.1mm barrel connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Dew Heater Ring - 14\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Dew Heater Ring for 14\" telescopes is an integrated dew prevention system that delivers up to 52 watts of power directly to your corrector lens. Its durable aluminum ring construction with an inner diameter of 355.6mm permanently replaces the stock retaining ring on your 14\" Schmidt-Cassegrain, EdgeHD, or RASA. Power is supplied via a common 12V DC barrel connector, and an integrated thermistor provides precise temperature monitoring when used with Celestron's SmartHeat controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect Corrector Heating with 52 Watts\u003c\/h3\u003e\n\u003cp\u003eUnlike standard heater strips that warm the lens cell inefficiently, the Celestron Dew Heater Ring heats the corrector glass directly. This method provides the most efficient heat transfer possible, applying up to 52 watts to keep your optics clear even on nights with heavy dew. This direct heating is more effective and consumes less power over an observing session compared to external bands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePermanent Fit for 14\" Celestron OTAs\u003c\/h3\u003e\n\u003cp\u003eEngineered from lightweight, rigid aluminum, this dew heater ring is designed to replace the plastic retaining ring on your telescope. This creates a permanent, secure installation you never have to remove, ensuring you're always prepared for a dewy night. The 355.6mm inner diameter provides a precise fit for 14\" Schmidt-Cassegrain, EdgeHD, and RASA optical tubes, supporting the corrector lens while housing all cable circuitry cleanly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Design:\u003c\/strong\u003e Replaces the factory retaining ring for a seamless fit that doesn't add bulk or interfere with accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Clips:\u003c\/strong\u003e Two built-in clips secure the power and thermistor jacks when not in use, allowing the dust cover to fit perfectly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Management:\u003c\/strong\u003e An included clip attaches to the front cell, preventing the power cables from dangling and causing snags or strain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e12V DC Power and Smart Controller Integration\u003c\/h3\u003e\n\u003cp\u003eThe ring operates on a standard 12V DC input using a 5.5mm\/2.1mm barrel connector, a common power source at any imaging setup. For maximum efficiency, the ring's built-in thermistor connects to Celestron SmartHeat Dew Controllers via a 2.5mm audio jack. This smart system provides just enough power based on real-time temperature and humidity, drastically reducing power draw and extending battery life.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermistor Compatibility:\u003c\/strong\u003e The integrated thermistor is designed exclusively for Celestron SmartHeat Dew Controllers, enabling intelligent power management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Extension Cable:\u003c\/strong\u003e A 6\" cable is provided to connect the ring to a controller's heater port or a third-party controller that uses a male RCA-style plug.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much power does the 14\" Celestron Dew Heater Ring actually use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ring has a maximum power draw of 52 watts. However, actual consumption is typically much lower, especially when paired with a Celestron Smart DewHeater Controller. The controller uses the ring's built-in thermistor to apply only the necessary amount of heat, significantly conserving battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 14\" Dew Heater Ring with my Celestron EdgeHD 1400 on a very humid night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is precisely what the ring is designed for. Its 52-watt maximum output and direct-heating method are highly effective at preventing dew on large 14\" corrector plates, even in challenging, high-humidity conditions. For best results, pair it with a dew shield to reduce the overall power required to keep the optics clear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the installation of the Celestron Dew Heater Ring reversible?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While it's designed for permanent installation, you can reverse the process. The Dew Heater Ring replaces the telescope's original plastic retaining ring, which you should keep. If you ever need to remove the heater, you can simply reinstall the original ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Dew Heater Ring with a third-party dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can power the Celestron Dew Heater Ring with a third-party controller. The included 6\" power jack extension cable has a male RCA connector compatible with many controllers. However, the ring's integrated thermistor function is only compatible with Celestron Smart DewHeater Controllers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dew Heater Ring for my RASA 36cm interfere with my camera cables?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The ring is designed with integrated storage clips and includes a cable management clip. These features help you route the power and thermistor cables away from the imaging train, preventing them from dangling in the light path or pulling on any connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose the Celestron Dew Heater Ring over a standard dew strap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is efficiency. The Dew Heater Ring heats the corrector glass directly, while a dew strap heats the lens cell and surrounding metal. Direct heating prevents dew with less power and provides more even heating across the entire optical surface, which is critical for maintaining image quality on a 14\" system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power\u003c\/td\u003e\n\u003ctd\u003e52 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack\u003c\/td\u003e\n\u003ctd\u003e12V DC barrel connector, 5.5mm\/2.1mm, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing Construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Jack Extension Cable\u003c\/td\u003e\n\u003ctd\u003e6\" long, 12V DC, 5.5mm\/2.1mm barrel connector on one end, male RCA connector on other end, tip positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermistor Jack\u003c\/td\u003e\n\u003ctd\u003e2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e14\" Schmidt-Cassegrain, EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e355.6mm (14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e388.1mm (15.28\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6.88 oz (195.2 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Celestron 14-inch Dew Heater Ring\" src=\"\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDew Heater Ring - 14\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Cable Management Clip\" src=\"\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Management Clip\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Power Jack Extension Cable\" src=\"\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Jack Extension Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Paper Installation Shield\" src=\"\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePaper Installation Shield\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Dew_Heater_Ring_Manual.pdf?v=1782186981\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron Dew Heater Ring Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967986364701,"sku":"CEL-94054","price":229.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Dew-Heater-Ring-14-inch-94054-1__65394.1644002798.1280.1280.jpg?v=1684347597"},{"product_id":"celestron-thermistor-for-smart-dewheater-controllers","title":"Celestron Thermistor for Smart DewHeater Controllers","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables smart temperature control for third-party dew heater bands\u003c\/li\u003e\n\u003cli\u003eConnects to Celestron Smart DewHeater Controllers (sold separately)\u003c\/li\u003e\n\u003cli\u003eStandard 2.5mm audio-style plug for broad compatibility\u003c\/li\u003e\n\u003cli\u003eLong 1828.8mm (72\") cable accommodates large telescope setups\u003c\/li\u003e\n\u003cli\u003eLightweight at just 18 g (.63 oz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron Thermistor for Smart DewHeater Controllers\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Thermistor adds intelligent temperature sensing to your third-party dew heater straps, featuring a generous 1828.8mm (72\") cable and weighing only 18 g (.63 oz). By providing real-time temperature data to a Celestron Smart DewHeater Controller, it eliminates power waste by delivering the precise amount of heat needed to keep your optics clear. This lightweight accessory with its 2.5mm audio plug is the key to optimizing your dew prevention system for maximum efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower Efficiency: Add Smart Control to Any 2.5mm Dew Strap\u003c\/h3\u003e\n\u003cp\u003eStop running your dew heaters at full power all night. This thermistor allows your Celestron Smart DewHeater Controller to actively monitor your telescope's optics and apply just enough power to stay above the dew point. This intelligent power management prevents unnecessary battery drain, extending your imaging sessions without sacrificing performance.\u003c\/p\u003e\n\u003cp\u003eBy placing the thermistor probe directly under your existing heating band, you provide the controller with the critical data it needs. This transforms any compatible third-party dew strap into a smart, power-efficient component of your Celestron dew prevention ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField-Ready Design: An 1828.8mm (72\") Cable for Any OTA\u003c\/h3\u003e\n\u003cp\u003eDesigned for practical use in the field, the thermistor's 1828.8mm (72\") cable provides ample length for virtually any telescope configuration. Whether you are outfitting a small refractor or a large Schmidt-Cassegrain on a German equatorial mount, you can route the cable cleanly to your controller without creating snags.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Connection:\u003c\/strong\u003e The thermistor uses a standard 2.5mm audio plug that securely connects to the dedicated port on any Celestron Smart DewHeater Controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Placement:\u003c\/strong\u003e The sealed probe tip is designed to be placed directly under your heating band, against the telescope body or lens cell, for accurate temperature readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Build:\u003c\/strong\u003e At only 18 g, the thermistor adds negligible weight to your optical tube, having no impact on balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need the Celestron Thermistor if I have a Celestron Dew Heater Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Celestron Dew Heater Rings have a thermistor built directly into them. This separate thermistor is specifically for use with third-party dew heater bands or straps that do not have their own temperature sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Celestron Thermistor save battery power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWithout a thermistor, a dew controller often runs the heater continuously or on a fixed duty cycle, using more power than necessary. The thermistor provides real-time temperature feedback to the Smart DewHeater Controller, which then pulses just enough power to the heater to keep the optics clear, significantly reducing overall power consumption.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere do I place the Celestron Thermistor probe on my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor the most accurate readings, place the sealed probe tip directly against the metal or glass of your telescope's optical assembly. Then, wrap your dew heater band over the top of the probe. This ensures the controller is measuring the temperature of the optics you are trying to keep clear of dew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 1828.8mm cable on the Thermistor be long enough for my 11\" SCT on a CGX mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1828.8mm (72\" or 6-foot) cable is designed to provide plenty of length for large setups. It allows you to route the cable from the front of a large optical tube back to a controller mounted on the dovetail bar or tripod, minimizing the risk of cable snags during slewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Thermistor with a non-Celestron dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis thermistor is designed and calibrated specifically for the Celestron Smart DewHeater Controller series. While the 2.5mm plug might fit other controllers, its temperature readings may not be interpreted correctly by third-party hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of adding this Thermistor to my setup over just using a manual dew controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is automation and efficiency. A manual controller requires you to guess the correct power level, which often leads to either wasting power by running the heater too high or failing to prevent dew by running it too low. The thermistor automates this process, ensuring your optics remain clear all night while using the minimum amount of battery power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlug\u003c\/td\u003e\n\u003ctd\u003e2.5mm Audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1828.8mm (72\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e.63 oz (18 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThermistor for Smart DewHeater Controllers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967986430237,"sku":"CEL-94037","price":22.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Thermistor-94037-1__24991.1646854672.1280.1280.jpg?v=1684347601"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/dew-prevention-and-control.oembed?page=4","provider":"David Astro","version":"1.0","type":"link"}