Equipped with high precision sensors, the STC-3028 is a compact thermostat with accurate and stable performance, widely applied to many fields. It is easy to operate. The heating and cooling can switch automatically, and the temperature is controlled by difference set value. Designed with ABS flame-retardant casing, it is safer and reliable to use. Features: Made of premium ABS material, with fine workmanship, compact size & light weight & high compatibility & strong anti-interference ability & high temperature resistance, stable and reliable. With intuitive operation interface and high definition LCD screen, easy to operate and clear to read values. Temperature thermostat with high performance and multiple functions, including heating, cooling, humidification, dehumidification and temperature correction. The temperature measurement range of this temperature regulator is from -40 to 110, and the humidity measurement range of which is 0%~100%RH. It can be used for heating, cooling, humidification and dehumidification of household refrigerators, water tanks, greenhouse cultivation, incubators, supermarket fresh and other equipment. Specifications: Model: STC-3028 Material: ABS Color: Black Supply Voltage: DC 12V / DC 24V / AC 110~220V (Optional) Power Supply Frequency: 50/60Hz Output Control: Relay Output Output Power: Max. 10A Temperature Measurement Range: -40~+110 Humidity Measurement Range: 0%~100%RH Temperature Accuracy: 0.3 Humidity Accuracy: 3% Item Size: Approx. 8.5*7.3*3.4cm / 3.35*2.87*1.34in Item Weight: Approx. 91g / 3.21oz Package Size: Approx. 10.2*8.3*6.2cm / 4.02*3.27*2.44in Package Weight: Approx. 160g / 5.64oz Note: Please read the User Manual carefully before use. Strictly distinguish interfaces of relay, sensor and power. Strictly distinguish connection of sensor and power. Sensor down-lead and power wire should be kept a proper distance. Packing List: 1 * Temperature Controller 1 * Temperature Sensor 1 * User Manual (English)