Temperature control function. Set the start temperature and stop temperature, the digital temperature controller socket will control the heating or cooling equipment to operate as programmed. It has a temperature calibration function. Temperature control range: -40℃~120℃, temperature control accuracy: ±1%. Various functions: The LCD screen can display the temperature control mode and 4 timing modes F01-F04. And with temperature correction function, screen lock protection, storage function (all current settings are saved after power off). Timing function. This temperature controller socket has the functions of cycle timing and countdown. You can choose the cycle timer mode to control the device to work in cycles, or choose other countdown modes to countdown to turn the device on or off. Setting range: 0~99 hours 59 minutes. 5 modes to choose from: temperature control mode, F01 cycle timer mode, F02 CD ON mode (countdown to turn on), F03 CD OFF mode (countdown to turn off), F04 CD ON and CD OFF mode (countdown to turn on and off). Please note that two modes cannot work at the same time, the system only works in the currently displayed mode. Multiple uses: The digital temperature controller socket can intelligently control temperature and time. It is widely used in household wall-mounted heating and other places of greenhouses, aquariums, carbon crystal heaters, thermostat switches, mobile air conditioners, and intelligent aquaculture control. Color as shown Delivery quantity: 1 piecebecomeveryrich