5 Temperature control modes F01 cycle timer mode; F02 countdown ON mode, F03 countdown OFF mode, F04 countdown ON and countdown OFF mode). Temperature calibration support. Reset function. Data storage function to save all set parameters after power off(Note:Temperature control function and time function cannot be used at the same time) Timing settings This temperature controller socket has cycle timing and countdown functions. You can select cycle timer mode to control the unit to operate in cycles, or select countdown modes to turn the unit on or off. Setting range: 0~99 hours 59 minutes. Please note that the temperature control function and the time function cannot be used at the same time. Precise temperature control -40~120Temperature control function with 1% accuracy. Set the start and stop temperature to make the heater or cooler operate as programmed. Other features HD LED display with backlight, very convenient to operate in the dark, 1.7M cable can meet most temperature control needs. Wide range of applications This thermostat socket with probe is widely used for glass house, greenhouse, incubator, terrarium, refrigerators, fermentations, heating mat and other temperature controlled systems.