Celestron Thermistor for Smart DewHeater Controllers

Take the guesswork out of using third-party heating bands or straps and increase your power efficiency with the Celestron Thermistor for Smart DewHeater Controllers. This accessory allows a Smart DewHeater Controller (sold separately) to deliver just the right amount warmth for your telescope's corrector to prevent dew without wasting battery. Its 6' cable length accommodates a wide variety of configurations.