The temperature controller works by controlling both AC and a heat blower. The inputs of both cooling and heating unit are connected to the controller which in turn controls the power flowing through the cooler and blower based on the temperatures in the surroundings. The settings work from RT or 18 to 55 degrees.

Specifications:

1. Temperature can be set from RT or 18 to 55 degrees

2. Can be set at an increments of 1 degree

3. Auto controls the heater blower and the cooler based on the surrounding temperatures

4. Sensors are precision to the level of 1 degree