{"product_id":"pegasus-dewmaster-5-channel-digital-dew-heater-controller-copy","title":"Pegasus DewMaster2 - 5 Channel Digital Dew Heater Controller","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eControls five independent dew heater channels\u003c\/li\u003e\n\u003cli\u003eAutomated dew prevention using included environmental sensor\u003c\/li\u003e\n\u003cli\u003eWiFi and USB-C connectivity for remote control\u003c\/li\u003e\n\u003cli\u003e2.1-inch red OLED display for at-a-glance status\u003c\/li\u003e\n\u003cli\u003eIntegrated ammeter and input voltage meter\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 DewMaster 2\u003c\/h2\u003e\n\u003cp\u003eThe Pegasus Astro DewMaster 2 is a fully digital, five-channel dew controller engineered for modern astrophotography. Operating on 12V-13.8V DC, it manages up to five dew heaters through its RCA power outlets, with a clear display showing real-time voltage and amperage. Housed in a compact 109mm x 74mm x 25mm anodized aluminum chassis, the entire unit weighs only 250 grams, providing advanced, automated dew control without adding significant weight to your imaging rig.\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\u003e5-Channel PWM Control via 5 RCA Outputs\u003c\/h3\u003e\n\u003cp\u003eThe DewMaster 2 is built around five high-capacity MOSFET-driven channels, each delivering up to 6 Amps of power through a dedicated RCA connector. This design ensures there is virtually no voltage drop, providing consistent and efficient power to your dew straps. You can manually adjust the Pulse Width Modulation (PWM) duty cycle for each channel from 0% to 100%, giving you precise control over power consumption and heating intensity directly from the unit's three-button interface or its web dashboard.\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 Logic with Included Environmental Sensor\u003c\/h3\u003e\n\u003cp\u003eTake the guesswork out of dew prevention with the DewMaster 2's intelligent automation. The controller includes an external environmental sensor that continuously measures ambient temperature and relative humidity to calculate the current dew point. By assigning a channel to \"Auto-Dew,\" the device will automatically activate and adjust the heater's power level as conditions change, applying just enough heat to keep your optics clear without introducing image-degrading heat waves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Sensor:\u003c\/strong\u003e The primary environmental sensor for automated dew point calculation is included in the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Probes:\u003c\/strong\u003e For more granular control, two 3.5mm sockets support optional temperature probes that can be placed directly on your primary mirror or objective lens for precise temperature tracking.\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\u003eWiFi \u0026amp; USB-C Control with ASCOM Alpaca Support\u003c\/h3\u003e\n\u003cp\u003eThe DewMaster 2 integrates seamlessly into any modern setup with both wired and wireless control options. Connect via USB-C for a stable, high-speed connection, or use the built-in WiFi to access the controller's web dashboard from any phone, tablet, or PC. The device supports both Hotspot mode for direct connection in the field and Client mode to join your existing network.\u003c\/p\u003e\n\u003cp\u003eFull support for ASCOM Alpaca allows for native integration with popular imaging software like NINA. Your software can automatically detect the DewMaster 2 over WiFi and control all five heater outputs directly from its interface, centralizing your entire rig's operation without the need for extra drivers.\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: A 2.1-inch Red OLED in a Rugged Enclosure\u003c\/h3\u003e\n\u003cp\u003eDesigned for the rigors of fieldwork, the DewMaster 2 is housed in a robust, blue anodized 6061 aircraft-grade aluminum enclosure. The centerpiece is a large 2.1-inch, 128x64 pixel red OLED screen that provides crisp, high-contrast readouts of each channel's power level, total current draw in Amperes, and input voltage. The red film ensures your night vision is preserved, and the display remains lag-free even in freezing temperatures down to -40°C.\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\u003eDewMaster 2 vs. Original: A Leap in Connectivity and Control\u003c\/h3\u003e\n\u003cp\u003eAs the successor to the popular original DewMaster, the DewMaster 2 introduces a suite of critical upgrades for the modern imager. While the core function of reliable dew control remains, the user experience has been completely redesigned.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModern Interface:\u003c\/strong\u003e The move to a large 2.1-inch red OLED screen from a simpler display provides far more information at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless Control:\u003c\/strong\u003e The addition of WiFi and a web-based dashboard is the most significant upgrade, allowing for remote adjustments and monitoring from any smart device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASCOM Alpaca:\u003c\/strong\u003e Native Alpaca support enables driverless integration with modern imaging suites, simplifying software setup and creating a more unified control environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Port:\u003c\/strong\u003e The update to a modern USB-C port from older USB types ensures a more reliable and universal physical connection.\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 control the DewMaster 2 without a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the DewMaster 2 in two ways without a PC. You can use the three physical buttons on the unit to cycle through channels and adjust power levels directly. Alternatively, you can use your smartphone or tablet to connect to the DewMaster 2's built-in WiFi hotspot, open a web browser, and access the full digital dashboard for complete control.\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 included sensor and the optional probes for the DewMaster 2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eincluded Environmental Sensor\u003c\/strong\u003e measures ambient air temperature and humidity to calculate the dew point; this is what the \"Auto-Dew\" function uses to control heaters automatically. The two \u003cstrong\u003eoptional temperature probes\u003c\/strong\u003e (not included) plug into the 3.5mm sockets and are placed directly on your optics (like a corrector plate or primary mirror) to measure their glass temperature, allowing for even more precise heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the DewMaster 2 handle the heavy dew on my 11\" SCT's corrector plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Each of the DewMaster 2's five channels can supply up to 6 Amps of current. This is more than enough power to drive high-wattage dew straps required for large corrector plates on Schmidt-Cassegrain telescopes (SCTs) or large refractor objectives, even in very high humidity conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the DewMaster 2 work with modern imaging software like NINA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The DewMaster 2 supports \u003cstrong\u003eASCOM Alpaca\u003c\/strong\u003e, which allows software like NINA or Sequence Generator Pro to automatically discover and control the device over your WiFi network without needing any special drivers. You can also connect via USB-C and use the standard ASCOM 7 driver if you prefer a wired connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI power my rig from a 12V battery; how does the DewMaster 2 help manage power?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe DewMaster 2 is ideal for field use. The \u003cstrong\u003ePulse Width Modulation (PWM)\u003c\/strong\u003e outputs are highly efficient, and the built-in ammeter shows you the total current your heaters are drawing in real-time. By using the \"Auto-Dew\" function, the controller only applies the necessary power as conditions change, significantly reducing overall battery consumption compared to leaving heaters on at full power all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the red OLED display on the DewMaster 2 safe for night vision?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The DewMaster 2 uses a high-quality OLED screen with a red film overlay. This design provides excellent contrast for readability while emitting pure red light that will not spoil your dark adaptation during an observing or imaging session.\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 Operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Channels\u003c\/td\u003e\n\u003ctd\u003eFive (5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Outlets\u003c\/td\u003e\n\u003ctd\u003e5 x RCA Connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003eSame as input voltage in Pulse Width Modulation (PWM) Duty Cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e2.1mm Centre Positive Socket (requires optional power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Meters\u003c\/td\u003e\n\u003ctd\u003eAmpmeter and Input voltage meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Probe Sockets\u003c\/td\u003e\n\u003ctd\u003e2 x 3.5mm sockets (probes not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e109mm x 74mm x 25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e250 grams\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\"\u003eDewMaster 2 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\"\u003eEnvironmental Sensor (Temp and Humidity)\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\"\u003e2.1 mm to 2.1 mm cable (1 meter length)\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\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Pegasus_Astro_DewMaster_2_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\/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":49365606400285,"sku":"PEG-DEWMSTR2","price":242.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/PEG-DEWMSTR2-1.jpg?v=1731527079","url":"https:\/\/davidastro.com\/fr-us\/products\/pegasus-dewmaster-5-channel-digital-dew-heater-controller-copy","provider":"David Astro","version":"1.0","type":"link"}