Celestron Smart DewHeater Controller 2x

Used for optimizing and prolonging the battery life of a dew heater, Celestron Smart DewHeater Controller 2x gathers and analyzes information in real-time to warm your optics. It helps prevent the formation of dew and can control two dew heaters simultaneously. An additional 12 VDC output port can be used to power another 12V device and works seamlessly with Dew Heater Rings.

Price: 349.99 from Wex Photo Video