Temperature Control FunctionTemperature range: -40C to 120C, temperature control accuracy: 1%. Output: Max. 16A/230V. Thermostat socket can automatically switch to heating and cooling mode, and control heating/cooling during work by setting the start and stop temperature equipment. (Start temperature > Stop temperature, cooling; Start temperature < Stop temperature, heating). Timer FunctionThermostat Socket has F01-F04 mode, F01 cycle time control mode, F02 countdown mode, F03 countdown mode and F04 countdown on, countdown off mode, the time range is 0-99 hours and 59 minutes. . Various FunctionsNo cables required, just connect the device to this temperature controller thermostat socket and set the parameters, it works as programmed. And with temperature correction function, screen lock protection, memory function (all current settings are saved after power off). If the temperature exceeds the temperature limit or a sensor error occurs, the thermometer will alarm. Thermostat Socket can also calibrate the compressor delay protection for compressor control and temperature. Easy to UseThe thermometer has timing, shutdown and timer functions. Simply plug it in and select the heating/cooling system that works normally. No bandage is required. The LCD digital thermostat socket can be displayed accurately and is very easy to use. Thermostat Socket can provide clear digital readings and good visibility in direct sunlight or low light conditions.