1.Multiple Application Scenarios: Thermostat timer sockets are widely used in homes, reptiles, greenhouses, incubators, glass containers, refrigerators, animal farms, fermentation and many places where temperature control is required. 2.Time Cycle and Countdown: Thermostat timer socket with timing cycle and countdown function. F01: Cycle timer mode; F02: Countdown open mode; F03: Countdown off mode; F04: Countdown on and countdown off modes. Time range: 0-99 hours 59 minutes. 3.Heating and Cooling Mode: The thermostat timer plug will control the heating/cooling mode according to the start and stop temperature. When the start temperature > stop temperature, it will enter the cooling mode; When the start temperature < the stop temperature, it will enter the heating mode. 4.Use Safety: Easy to program and to use. Simply plug the temperature controller into the socket, then select the timing mode and set the start and stop temperature to control the heating or cooling of the device. Temperature control range: -72℉~176℉ Output: Maximum 15A/120V 1800W. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.