This is an instruction manual for Celestron Dew Heater Ring
The Celestron Dew Heater Ring is a direct-contact heating solution designed for Schmidt-Cassegrain (SCT), EdgeHD, and RASA telescopes. It integrates directly into the optical tube assembly to prevent dew formation on the Schmidt corrector lens, offering more efficient power usage than external strips. The device includes an integrated thermistor for use with optional Smart DewHeater Controllers to minimize power consumption.
| Compatible Telescope Apertures | 5", 6", 8", 9.25", 11", 14" |
|---|---|
| Power Requirement | 12V DC |
| Connector Type | 5.5mm/2.1mm barrel plug |
In standalone operation, the ring always operates at full power. When used with a controller, the thermistor adjusts power to keep the lens clear while minimizing usage.
The ring may not heat up enough to prevent dew from forming on the corrector during heavy dew conditions.