3230 Temperature Controller Digital Display Thermostat Module Temperature Control Switch Micro Heating Cooling Temperature Control Panel This product is a mini temperature controller, it can be used for domestic freezer, water tanks, refrigerator, industrial chiller, steamer, industrial equipment and other temperature-controlled system. Features: Mini temperature controller, easy to operate and use. With large and clear LEDs display for better readability. It has a wide temperature measuring range. Heating and cooling control, support switch modes between cooling mode and heating mode. Relay output. The delay function can be turned on to protect the service life of the refrigerator or heater when it is needed for delay. Wide temperature measuring range from -55℃ to 120℃. Can be used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipment and other temperature control applications. Specifications: Item type: Temperature Controller Power Supply: 12V, 24V, 110-220VAC (Optional) Temperature measuring range: -50℃~99℃ Resolution: -9.9℃~99.9℃: 0.1℃  Accuracy: 1℃  Sensor: NTC10K Waterproof sensor Environmental requirements: -10-60°C , humidity 20%-75%RH Refresh Rate: About 0.5S Dimension:79mm * 43mm Cutting Size:76mm*39mm Package weight: 49g/1.72ounces Package size: 80*43*22mm/3.14*1.69*0.86inches Package List: 1 * Temperature controller  1 * The probe line(1M)