This product is a mini temperature controller, it can be used for household freezer, water tanks, refrigerator, industrial cooler, steamer, industrial equipment and other temperature system controlled. Features: Mini temperature controller, easy to use and use. With large and clear indicators for better readability. It has a wide temperature measurement range. Heating and cooling control, supports switching modes between cooling mode and heating mode. Relay output. The delay function can be activated to protect the life of the refrigerator or heater when necessary. Wide temperature measurement range from -55 to 120. Can be used for domestic freezers, water tanks, refrigerators, industrial coolers, boilers, steam appliances, industrial equipment and other temperature control applications. Features: Item Type: Temperature controller Power supply: 12V, 24V, 110-220VAC (optional) Temperature measurement range: -50~99 Resolution: -9.9~99.9: 0.1 Accuracy: 1 Sensor: Waterproof NTC10K sensor Environmental requirements: -10-60C, relative humidity 20% -75% Refresh rate: about 0.5S Dimension: 79mm*43mm Cutting size: 76mm*39mm Package weight: 49g / 1.72 ounces Package size: 80 * 43 * 22mm / 3.14 * 1.69 * 0.86inches Package List: 1 * Temperature Controller 1 * Line probe (1M)