Easier quality: timer on, timer off, timer switch; just plug it in and choose heating/cooling system, it works, no rotation, accurate LCD display.Connected to both cooling and heating systems. The heating/cooling differential function sets cooling and heating separately for temperature control in the event of major changes. Temperature Alarm Alarm: When the temperature exceeds the temperature limit or a sensor error occurs, the temperature change does not always have to be considered. Compressor delay protection for compressor control and temperature can also be calibrated. Wide Device: This thermostat allows you to precisely control your room temperature. Widely used in greenhouses, fish tanks, coal crystal heaters, aquaculture, incubators, room temperature control, home and other places.Colour:WhitePackage includes: 1 piece of temperature control socket (European standard)