Astro-Smart's Computerized Dew Annihilator(RCDA-2).  Control Dew Removal Capability  for any telescope.

The RCDA-2 is designed for multiple scopes with high current demands(Upto 16-20 Amps) targeted to be used with this one device or can be used with any scope providing plenty of power reserve. The Standard for most dew controllers is 10-15 Amps which is the foundation of our main line.  The RCDA-2 offers users the following benefits.

1. More Heat Demand.

2. Support for an Array Of  Dew Straps To Fit Multiple Scopes(Small, Medium and Large).

3. Fitted for More Than One Scope Needing Only 1 unit For Control.

4. Plenty of Power Reserve if needed For 1 Scope.

5. Standalone Computer Control With Simple Menu Button Interface.

6. Supply Heat Power upto 20 Amps.

7. Low Cost.

(Model: RCDA-2)


Typical Configuration for the RCDA-2  is shown below on a ritchey-chretien but can be used with any reflector, refractor, newtonian or schmidt-cassegrain telescope.



The RCDA-2 can be setup with your telescope for troublefree operation controlled manually by the user supplied key pad interface.

Astro-Smart is the innovator of this elegant solution to your dew problem. The Computerized Dew Annihilator  (Model: RCDA-2) is one to the most advanced yet modest dew controllers made available to the amateur or professional Astronomer. The Computerized Dew Annihilator (Model: RCDA-2) is designed to be used with any make or model of telescope.  Whether you have a refractor, newtonian, schmidt-cassegrain, or a ritchey-chretien, the RCDA-2 will solve your dew problems while informing you every step of the way. Its like having a hired dew specialist posted at your telescope 24/7. 

In the following picture you can see RCDA-2 system with common 4 heat channels, LCD Dsiplay, User Button Menu Interface and Power Supply Input. For more information on operation of this product see the user manual links and video tutorial links on this page.

Since, the inception of this unique product at Astro-Smart, the RCDA-2 was many years in the making, over long periods in astronomy using existing products on the market to control dew, identifying their weaknesses and limitations making the product you see before you.  The RCDA-2 is finally here!!! The Astro-Smart Computerized Dew Annihilator  (Model RCDA is  designed to be user friendly, serviceable, elegant and reliable and include the following  features  shown below:


Worry Free Warranty Program For Life Of Product Sale.


Full Computerized Dew Control Solution.


4 Manual Selected Output Port Heat Channels User Control Capable of 240 Watts(12V, 20Amps).  Works with any RCA type heat straps....Astro-Smart, Astro-Zap, Kendrick, etc. (16 Amp Version Available At Lower Cost)


Variable Power Control Duty Cycle 0-100%, 1.5KHz. Patented Asto-Smart Wave Cancellation

Method And Pulse Width Modulation(PWM) for Efficient Heat Output Tailored for

Extreme Dew Removal, Reduced Wave Interference with CCD Imaging and Conservation of

Power Drawl.


Updatable Firmware and Standalone Software GUI Interface.


High quality design employs multi-layer PCB form factor and only the best quality components

 with conformal coatings for outdoor use.


Void of RFI(Radio Frequency Interference) protected to enhance Astro-Imaging .


Price point set below development cost for such a system while providing more features.


Video below shows 9.2 Amps DC at 80% power using a low resistive load for demonstration purposes.

[Order Now!] 
The Computerized Dew Annihilator for any telescope!

The RCDA-2 package contents are shown below: