STC-1000 Digital Temperature Controller Thermostat with Sensor -50~99C 220V All-Purpose AquariumDescription: This mini temperature controller is a great and convenient multi-function device for controlling temperature in aquariums. The temperature stability of the aquarium is one of the crucial factors that contributes to the health and safety of your fish. By using the temperature controller, you can provide an environment with optimum temperature for your fish. This advanced temperature controller can measure and control temperature from -50 to 90 C. This device is also suitable for laboratories and other temperature-controlled systems. ) Heating and cooling dual function Automatic overheating Temperature control by setting temperature set point and different value Temperature calibration Refrigeration control output delay protection Wiring diagram for installation included -50 ~90 Control Temperature Range: -50 ~ 90 C (adjustable) Control temperature difference: 0.3 - 10 C