What is the Differential Temperature Sensor for?
The Differential Temperature Sensor (see photo above) measures both the ambient air temperature and the telescope temperature so that the DewBuster Controller can adjust the power output of the Temperature Controlled Heater in order to maintain the telescope slightly above the air temperature as set by the control knob. For easy attachment, the Scope Sensor clips to the heater strip and relies upon the heater to keep it in contact with the telescope. The Air Sensor is located on the end of a brown extension wire which suspends it for an accurate temperature reading. Since the two sensors are combined into one assembly with a single 6-foot cable, wiring clutter can be minimized by routing the sensor cable alongside the heater strip cable and you may tape them together if you wish.
