Dismiss Notice
New Cookie Policy
On May 24, 2018, we published revised versions of our Terms and Rules and Cookie Policy. Your use of AstronomyConnect.com’s services is subject to these revised terms.

More Views

Thousand Oaks Four Channel Digital Dew Heater Control Unit # DDHC

4.9 (10 Reviews) Read Reviews Write Review
Brand Thousand Oaks Optical
Part Number DDHC
Availability available

Product Info

Manufacturer Description

Thousand Oaks Optical's Four Channel Digital Dew Heater Control Unit # DDHC - Compared to competitor's models, it is like getting four controllers in one!

FOUR CHANNEL: Each heater output is controlled independently and has a full range of adjustment from 0-100%. This eliminates the problem of overheating or not reaching desired temperature regardless of heater size and combination. Green LED indicates unit is receiving power and also serves as a low power warning in "battery saver" mode. Each channel has it's own red LED indicator. Compared to competitive models, it's like having four units built into one box with advanced features. Unit is small and lightweight measuring 5" x 2.5" x 1" (127mm x 63 x 25). Supplied with 12' (3.65m) power cord and cigarette lighter adapter.

DIGITAL: Latest state of the art circuitry with microprocessor. Pulse width modulation and microprocessor provides stable output for precise temperature control. Without this control, output voltage can "wander" due to moisture, temperature changes and age as seen with competitive models.

BATTERY SAVER: Have peace of mind when using your vehicle battery, knowing that you will always have plenty of charge left to start the engine. Unit automatically turns off if voltage drops below 11.1v. At 11.25v green LED begins flashing indicating unit will turn off in approximately 30-60 minutes. With the advanced energy saving circuitry, most users can get a complete observing session without needing to start engine to recharge battery. The battery saver function can be turned off when using a dedicated battery. (Factory default =on)

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.

Please note that this item requires a 12V DC power supply with a cigarette lighter jack for operation. It includes a cigarette lighter adapter with a 12' (3.65m) long cord for connection to such a supply (for example, a car battery or portable field battery). It does not include a converter/adapter or cannot be operated from standard AC power sockets. Dew heater strips / bands for actual heating of optical elements are sold separately and are not included with this controller.

Reviews

4.9 (Based on 10 Reviews) 100% of reviewers recommended this product.
Rating Distribution
Sort by
  • Date
  • Rating
  • Useful
    1. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Hyungwook K.
      1542519596
      Nov 17, 2018

      5.0 simple, great

      Pros:

      Cons:

      Comments:

      works great in the simplest way

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by David A.
      1540349531
      Oct 23, 2018

      5.0 Great accessory!

      Pros:

      Cons:

      Comments:

      I have used this a few times already, since getting it. It works flawlessly. Keeps three dew strips warm and toasty, preventing dew from forming on my optics and finder. It is a nice square case as opposed to the Kendrick odd shaped dew heater controller. It is light weight, easy to use knobs and 12 foot long 12vdc cable and plug.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    3. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Mathew W.
      1534388118
      Aug 15, 2018

      5.0 Works like it's supposed to!

      Pros:

      Cons:

      Comments:

      Works like it's supposed to! Keeps the dew off up here in Canada!

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    4. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by james d.
      1529372991
      Jun 18, 2018

      5.0 works great.. small unit size..

      Pros:

      Cons:

      Comments:

      works great.. small unit size.. i like the 4 control switches.. easy to mount to scope with supplied velcro and best of all the price compared to others on the market uses next to no power i highly recommend this product when used with dew not heater strips no more session stopped by dew on the corrector plate and eyepieces outperforms any dew shields which i used before i purchased this item with the strips with no vignetting
      cheers
      james D

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    5. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Dave C.
      1493410362
      Apr 28, 2017

      4.0 Thousand Oaks Four Channel Digital Dew Heater Control Unit

      Pros:

      Cons:

      Comments:

      I have been using the control unit for six months without any issues.

      The unit is simple and at a good price.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    6. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Rhett M.
      1486385714
      Feb 6, 2017

      5.0 Thousand oaks dew controller

      Pros:

      Cons:

      Comments:

      Easy to use and great price compared to some other's. Service is fantastic from Agena

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    7. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Benjamin S.
      1483898631
      Jan 8, 2017

      5.0 Four Channels!

      Pros:

      Cons:

      Comments:

      Love the four-channels with the plastic plugs to cover the unused ports. Works fine! The long power cord keeps the power supply from underfoot.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    8. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by sinsonte of WV.
      1444435200
      Oct 9, 2015

      5.0 Works as advertised

      Pros:

      Easy to Use

      Cons:

      Comments:

      I use both this for both dew heaters (using the knob controls) and to provide constant 12 V (using the auxiliary outlet) to an electric focuser. Works well in both case. I appreciate the long power cord.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    9. Gunsmokeray

      Gunsmokeray New Member

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by gunsmokeray of Louisiana.
      1443225600
      Sep 25, 2015

      5.0 Quality product

      Pros:

      Lightweight,Easy to Use,Strong Construction

      Cons:

      Comments:

      Easy to use quality dew zapper

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    10. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Stefan of Melbourne, Australia.
      1409961600
      Sep 5, 2014

      5.0 Great product and easy to use

      Pros:

      Strong Construction,Easy to Use

      Cons:

      Comments:

      This is a fantastic little product to connect all of your dew equipment to. Gives you 4 plugs which is plenty for future expansion.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    Sort by
    • Date
    • Rating
    • Useful