Audio & Video Cables & Adapters
Celestron Smart DewHeater and Power Controller 4X
Using real-time data, the controller provides just enough heat to prevent dew from forming, prolonging battery life “Smart control” system monitors ambient temperature and humidity and adjusts power to four dew heaters automatically Compatible with...
https://www.bizrate.co.uk/audio_videocables_adapters/celestron-smart-dewheater-and-power-oid32072398260.html
