Day & Night Temperature Control: Line Voltage Thermostat can work in heating or cooling mode, temperature control range is -40~248 (-40~120), control accuracy is 1%, Celsius and Fahrenheit degrees can be converted Automatic Work: Thermostat Temperature Controller with automatic activation will automatically turn your heating/cooling equipment on or off based on the target temperature you set, eliminating the need to plug cables back and forth as the temperature fluctuates, helping you save electricity 4 Timing Functions: Digital Thermostat has 4 timing functions with F01 cycle timer, F02 countdown timer on, F03 countdown timer off and F04 countdown timer on and off, please note that the temperature control function and the timing function cannot be used at the same time Widely Application: Temperature Controlled Outlet are widely used in greenhouses, freezers, refrigerators, heaters, bath heating, refrigerators, heating pads, incubators, , aquariums, -day boxes, fermentation and other temperature control systems Easy to Operate: Simply plug the unit into the thermostat plug socket and set the parameters to work as programmed, plug in thermostat for heater contains 1.7M NTC 10K temperature sensor waterproof probe, 120V15%AC 15A/120V 1800W Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage: AC100-240V Color: White Material: ABS Package Contents: 1 x pcs Digital Temperature Controller Outlet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.