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Astrozap Dew Controller

SKU : AZ-720

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  • Manage Heat Levels of Your AstroZap Dew Heater Strap.
  • Total Amperage Capacity: 5 Amps.
  • Green and Amber LED Lights Indicate Power Use and Charge.

Product Details

  • Astrozap 720 Dual-Channel Dew Controller regulates the heat on two separate channels for either one or two dew heaters per channel. Control dew formation on your corrector plate, finderscope, eyepiece, or mirror! You can even keep your telescope hand controller or laptop warm!

    AstroZap Dual-channel Dew Controller Features

    • By using pulse width modulation technology, each channel controls two outputs for a total of four outputs! The channels are capable of a duty cycle from 5% on time at the low setting, to 95% on time at the high setting.
    • The AstroZap 720 Dew Controller is manufactured for operation on 12V DC and should never be operated with any other voltage. The total amperage capacity for all four outputs is 5 Amps. The controller is supplied with a six-foot cord equipped with a cigarette lighter plug end. A 5A fuse is incorporated into the plug.
    • You can also use it to power the Flexi-Heat dew shields and Heat Bands. The RCA output connectors will accommodate other brand dew heaters.
    • The green LED indicates that the controller is getting power. The two amber lights by the outputs indicate the power level of each channel. The brighter the amber LEDs, the higher the duty cycle for that channel. When the controller is set to the lowest setting, it is effectively off.
    • The AstroZap 720 controller runs on 12V DC and comes with a six-foot cord that adapts to your vehicle's auxiliary power port, or a 12 Volt battery pack equipped with the proper receptacle.
    • A two-inch Velcro strip is included for mounting the controller to a convenient area of your telescope mount.

    Product Number: AZ-720

  • specifications

    Warranty1 Year Warranty
  • included items

    • Manage Heat Levels of Your AstroZap Dew Heater Strap.
    • Total Amperage Capacity: 5 Amps.
    • Green and Amber LED Lights Indicate Power Use and Charge.

Product Reviews

Customer Reviews
4.3 Based on 6 Reviews
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    United States

    Astrozap dew heater

    Fast shipment, well packaged and it works well.

    Seb L.

    AstroZap Dew Controller

    Great purchase fast delivery

    United States

    dew heaters

    fit good and work great

    George L.
    New Zealand

    The Astrozap Controller. Is it worth it?

    The answer is an emphatic yes. If you have a scope and need a controller for your Dew Pads ands eyepiece warmers, this is the answer. It has good controls and it feels good quality. Paired with the Astrozap Flexi heat shield, you are set for the cold nights.

    R T.
    United States United States

    Blown Fuse

    OPT service and delivery was very good. Unit performed well for 7 months and then quit working. The unit was under warranty so I was going to send it back . Fortunately I reread the Astrozap description that mentioned a 5 amp fuse in the plug. I opened up the plug (probably invalidated the warranty) and found the fuse had blown. Replaced the fuse with one I had and everything works again. Astrozap should include a spare fuse with their unit and a drawing to show where it goes, cheaper then shipping to replace under warranty.

    United States United States

    Worked twice ...

    ... then the fuse blew, after replacing it the dew controller remained dead.