Our thermostat plug allows you to set the start and stop temperature to control heating or cooling equipment with a range of -40℃-120℃ (-40℉-248℉). Timer thermostat support 15A/120V 1800W load. (start temperature Greater than stop temperature, cooling; start temperature Less than stop temperature, heating). This thermostat plug also supports temperature calibration. The newly upgraded 2.24-inch LCD screen is different from most other products on the market. It has a backlight function. The clear LCD display and power indicator lights allow you to see the controller's status even in total darkness. F01 cycle timer mode; F02 countdown ON mode, F03 countdown OFF mode, F04 countdown ON and countdown OFF mode). Timing range: 0-99 hours 59 minutes. Timing accuracy: Up to 10 minutes. 1.7M/5.6FT NTC 10K temperature sensor probe; Heating/Refrigeration Function; F01-F04 Timing Function; -9.9-9.9℃ Temperature Calibration Function; Memory Function; Reset Function; Screen Lock Protection (all current settings are saved after power off). Celsius and Fahrenheit can be converted. You just need to press key "SET" until the temperature display changes. Plug and play, using high conductivity copper plates. Safe socket to prevent children from accidentally plugging in. The appearance adopts PC high-temperature flame retardant material. It is perfect for household wall heating and elsewhere in greenhouses, incubator, aquariums, and for intelligent control of aquaculture, ventilation/temperature control system, etc. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage:AC110V Colour:White Material:Plastic Package Contents: 1set * reptile thermostat