Thousand Oaks Optical Dew Heater Controller

  • Four Independently Controlled Channels!
  • Stable Output for Precise Temperature Control.
  • Battery Saver Mode.
  • Dimensions: 8 x 8 x 4 inches.
  • Weight: 2 lb.
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  • Regular price $109.00

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Thousand Oaks Optical Dew Heater Controller

The Thousand Oaks Optical Dew Heater Controller is designed with four channels that are independently controlled and 0-100 of full range adjustments for precise temperature alterations! Equipped with “battery saver mode,” its battery provides power for full observing sessions. Overall, the heater controller is small and lightweight. It measures at 5 x 2.5 x 1-inches (127 x 63 x 25 mm) and is supplied with a 12-foot (3.65 m) power cord and cigarette lighter adapter.

Special Features of the Thousand Oaks Optical Dew Heater Controller


Green LED lets you know it's receiving power and also serves as a “low battery” warning when in “battery saver mode.” Also, each channel has its own red LED light. Have total control of the fluctuating temperatures of your optics during long exposure shots and produce breathtaking images!


When the voltage drops below 11.1 v at 11.45 v, the heater controller will automatically turn off. Look out for the flashing green LED light that will warn you approximately 30-60 minutes ahead of time. You can turn this function off when using a dedicated battery. Battery saver mode is automatically on by factory default.


Engineered with the latest circuitry of microprocessor, in combination with pulse width modulation (PWM), your dew heater controller provides stable output for precise temperature control. Without this control, the output voltage can “wander” due to moisture, temperature changes, and age.

Thousand Oaks Optical Dew Controller Includes:

  • Auxiliary 12V Output: Extra RCA outlet with constant 12V output for any device requiring 12V DC.
  • Fully protected circuitry. Fuse and diode protection for surge or reverse polarity.
  • One year manufacturer's warranty.

    OPT Product Number: TH-DDHC


    Warranty1 Year Warranty
    Customer Reviews
    5.0 Based on 2 Reviews
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    Filter Reviews:
    Kenn H.
    United States United States
    Dew Heater Controller

    The controller worked as expected. It controls both my Thousand Oaks Heater and the AstroZap Heater. Both of the heaters remove more dew than my 30 years of heating strap does.

    Paul W.
    United States United States
    Works great! The small covers to protect the jacks and LED lights are a nice touch.

    Great! My older controller stopped working and so this is a replacement.