The temperature controller automatically switches between heating and cooling modes and controls heating/cooling by setting start and stop temperatures during operation. Versatile functions: The LCD screen can display temperature control mode and four time control modes F01-F04, and has temperature correction function, screen lock protection and memory function (all current settings are saved after power off). Intelligent time control: This socket thermostat can detect the temperature, adjust the on and off temperature, and has cycle time control, on time, off time and timer function.TIME RANGE: Range: 0-99 hours 59 minutes, time accuracy: up to 10 minutes.Maximum load: 16A (2), 3680W. 1.8 meter temperature sensor: The thermostat socket is equipped with a 1.8 meter cable temperature sensor for connecting to a thermostat with a temperature detection range of -40?~+120?. WIDE RANGE OF APPLICATION: The digital thermostat socket allows intelligent control of temperature and time.Widely used in home wall-mounted heaters as well as greenhouses, aquariums, carbon crystal heaters, thermostatic switches, portable air conditioners and intelligent aquaculture controllers.