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ZWO Anti-Dew Heater Strip


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  • This anti-dew heater strip is used for anti-dew on the front window of ASI cooled cameras.
  • The kit includes a zip-tie, an anti-dew heater strip, and a Y power cord.
  • The thickness of the anti-dew heater strip is between 0.2 and 0.3 mm.

Product Details

  • This anti-dew heater strip is used to prevent dew on the front window of ASI cooled cameras.

    The Y power cord is designed to connect in-line with the cooler power supply for convenience.

    Recommended: You will need spacers at 0.3 mm and 0.5 mm thick for aligning your camera and an EFW.

    Recommended: 12V at 0.35A  DC adapter where the heating power on the strip is about 4.2Watts. You can use one and the same power cord to power both the fan and heater simultaneously, but make sure not to exceed the recommended amount of Amperage. 

    How to use it?

    1. Tear out the protective film on adhesive tape.
    2. Put the anti-dew heater strip on the front-facing of the camera and make sure the black cable is in the right position (lining next to the DC plug at the rear end).
    3. Tie the black cable with a zip-tie on the camera body.
    4. Plugin the power cord.




    Now you should be dew-free while shooting with the camera!


    NOTICE: Be careful about the welded portion, it is vulnerable and cannot hold under a very strong pull.

  • specifications

    Free ShippingYes
  • included items

    This kit includes:

    • Zip-tie.
    • Anti-dew heater strip.
    • Y power cord.


Product Reviews

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5.0 Based on 3 Reviews
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United States United States
Fit and work well

It fit and worked well. My only concern was that there were not installation instructions. Instructions are on the ZWO web site but there in no information on how to find it included with the Dew Heater. Installation and operation are fairly simple so this is not too much of an issue.

Thomas C.
United States United States
Works Beautifully

The dew heater works perfectly on my ASI1600mm-Pro. My problems with a dewed up focal plane window are over. My one complaint is that ZWO should have included an integral heater within the body of the camera.

Don R.
United States
Purchase of ZWO ASI071 Camera

Chris Hendren knows his stuff. The only issue I have is the camera is a USB 3 device and I'm having trouble with my current ICRON HUB which is USB 2.