This product is a mini temperature controller, it can be used for home freezer, water tanks, refrigerator, industrial programmed, steamer, industrial equipment and any other. Functional units: Mini temperature controller, easy to use and operate. With large and clear indicator lights for better readability. It has a large temperature measurement range . Heating and cooling control, supports switching modes between cooling mode and heating mode. Relay output. Delay function can be activated to protect the life of the fridge or heater when needed. Wide temperature measurement range from -55℃ to 120. Can be used for home freezers, water tanks , refrigerators, industrial promising, boilers, steam appliances, industrial equipment and other nature control applications. Features: Item Type: Temperature Controller Power Supply: 12V, 110-220VAC (optional) Temperature measurement range: -50℃~99 Resolution: -9.9℃~99.9: 0.1 Accuracy: 1 Sensor: Waterproof NTC10K sensor Environmental requirements: -10-60°C, relative humidity 20% -75% Refresh rate: approx. 0.5s Dimensions: 79mm * 43mm Cut Size: 76mm*39mm Package Weight: 49g / 1.72 oz Package size: 80 * 43 * 22mm / 3.14 * 1.69 * 0.86inches Package List: 1 * Temperature Controller 1 * The Probe Line (1M) < p>Note: the data is manual measurement, please allow 1-89cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.