The external temperature detector can detect the temperature. Set the start and stop temperature. Cycle timing, start and stop time, timer switch. It is widely used in intelligent control, such as carbon heating, aquaculture, greenhouse, home life and other places. Features: Plug and Play: Easy to program and safe to use. Just plug the temperature controller into the socket, then select timing mode, set the start and stop temperature to control the heating or cooling equipment. Temperature control range: -72 Fahrenheit ~176 Fahrenheit -40 celsius ~120 celsius . Accuracy: +-1percent . Heating & Cooling Mode: The thermostat timer plug will according to the start and stop temperature to control the heatingcooling mode. When the start temperature more than stop temperature, it will enter the cooling mode; When the start temperature less than stop temperature, it will enter the heating mode. Timing Function: Thermostat timer socket has timing cycling and countdown function. 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. Backlit LCD & Various Functions: The backlit LCD display of the temperature controller timer can easily realize checking the current and setting temperature value in a dark environment. Besides, it also has calibration, memory and reset functions to let it more convenient to use. Wide Application: The thermostat timer socket is widely used in greenhouse, home, reptile, incubator, terrarium, refrigerator, vivarium, fermentation and many places where need to control temperature. Specifications: Plug: EU US UK AU (Optional) Working Voltage: 240V (AU), 230V (EU & UK), 110V (US) Maximum Working Current: 10A (AU), 13A (UK), 15A (US), 16A (EU) Material: PC flame retardant material Temperature Display Range: - 40 celsius ~120 celsius Temperature Display Accuracy: 0.1 celsius Accuracy: +-1percent Timing Accuracy: MAX 1 minute Local Power Consumption: less than 0.8W Package Weight: 165g 5.82oz Package Size: 8.2 * 6.5 * 10.4cm 3.23 * 2.56 * 4.09in Package List: 1 * Temperature Controller 1 * User Manual (English)