KKmoon High Quality 90~250V 10A Digital Temperature Controller Thermocouple -50~110 Celsius Degree with Sensor A mini temperature controller. With large and clear LED display for better readability. Wide temperature measuring range. Heating and cooling control. Temperature calibration function. Delay protection function. All parameters can be set to default setting after short circuit. Can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipments and other temperature-controlled systems.