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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
ZWO Anti-Dew Heater Strip

ZWO Anti-Dew Heater Strip

by ZWO
SKU ZWO-Anti-dew
$19.00 - $19.00
$19.00
$19.00 - $19.00
$19.00
Price Match Policy!
  • Maintains a clear sensor window on ZWO ASI cooled cameras
  • Consumes a minimal 4.2 watts of power
  • Ultra-thin 0.2 mm to 0.3 mm profile for a non-intrusive fit
  • Integrates directly with camera cooler power via included Y-cord
  • Backed by a 2-year ZWO warranty
3 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • ZWO Anti-Dew Heater Strip for Cooled ASI Cameras

    The 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.

    Efficient 4.2W Dew Prevention

    Designed 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.

    Ultra-Thin 0.2 mm Profile and Simple Installation

    The 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.

    • Adhesive Backing: Allows for a secure, semi-permanent installation directly on the camera body.
    • Flexible Circuit: Conforms to the circular housing around the camera's sensor window.
    • Low Profile: Avoids mechanical conflicts with other accessories in the imaging train.

    Seamless Power Integration with the Included Y-Cord

    ZWO 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.

  • How do I install the ZWO Anti-Dew Heater Strip?

    Installation 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.

    What power supply is needed for the ZWO Anti-Dew Heater?

    The ZWO Anti-Dew Heater requires a 12V DC power source capable of supplying at least 0.35A. 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.

    Will this ZWO heater strip work on a non-ZWO camera?

    This strip is specifically designed for the form factor of ZWO ASI Cooled Cameras. 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.

    How does the Y-power cord for the ZWO heater work?

    The 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.

    Can I use the ZWO Anti-Dew Heater Strip on my 50mm guide scope?

    No, 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.

    Is the ZWO Anti-Dew Heater always on?

    Yes, 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.

  • SKU ZWO-ANTI-DEW
    Compatibility ZWO ASI Cooled Cameras
    Power Consumption 4.2 W
    Power Requirement 12V @ 0.35A DC
    Thickness 0.2 mm - 0.3 mm

    • ZWO Anti-Dew Heating Strip

      × 1

    • Y Power Cord

      × 1

    • Zip Ties

      × 2

  • ZWO 2-Year Limited Warranty