Heating & Cooling Mode: Temperature range: -40C~120C. Max Load: 13A 2900W. Temperature control accuracy: 1 %. Timing accuracy: MAX 10minutes. Timing Function: F01~F04 modes for cycle timing and countdown: F01 Cycle Timer mode; F02 Countdown ON mode, F03 Countdown OFF mode, F04 Countdown ON and Countdown OFF mode. You can choose F01 mode to control the device to work in cycles, or choose F02~F04 modes to countdown to turn on or turn off the device. Set range: 0~99 hours 59 minutes. Please note that this thermostat plug only works in one mode. Safety Material: Made of PC flame-retardant shell, which is sturdy and durable, has excellent impact resistance, has a higher safety factor, and has passed multiple safety tests, making it more secure to use. High-Sensitivity Sensor: The socket is equipped with a 1.7 m NTC10K temperature sensor, which is highly sensitive and supports temperature calibration. It is long enough to meet a variety of working environments. Wide Application: Widely used for greenhouse, incubator, aquariums, terrarium, freezer, refrigerator, heater, vivarium, fermentation, heat mat, and other temperature-controlled system. It can also be used as a timer for cycle timing and countdown.