Features: 1.Choose Chinese and English menu subtitles and discard obscure codes, which is easy to understand and operate. 2.When the button is triggered, the buzzer will sound once, which has both tactile and auditory experience, which makes the operation easier and more convenient. 3.LED display screen, easy to read, operate and set parameters, you can choose COOL or HEAT mode, you can switch between C or F, the back of controller has a convenient hanging hook, you can hang. 4.Digital temperature controller, used to heat the mat in a colder or hotter environment, can adjust the temperature difference and has an adjustable output delay function to protect the thermostat. Temperature measurement range: ?40~110C, temperature control range: 16~40 C. 5.It is very suitable for use in aquariums, reptiles, greenhouses and refrigerators, as well as places that require constant temperature. It can germinate and root seeds, provide a constant customized temperature, and keep various environments within an ideal temperature range. Specification: Item Type: Thermostat_x000D_ Material: Plastic_x000D_ Plug and Voltage: 110V US Plug_x000D_ Weight: Approx.400g/14.1oz_x000D_ Resolution: 0.1_x000D_ Measurement Accuracy: 1_x000D_ Measuring Range: -40~100_x000D_ Temperature Control Range: 16-40_x000D_ Storage Temperature: -30~70_x000D_ Panel Protection Level: IP65_x000D_ Whole Machine Power Consumption: 3w_x000D_ Operating Environment Temperature: -10~60_x000D_ Operating Environment Humidity: 10%~90% (no Frost)_x000D_ Input: an NTC Sensor, Cable Length: Approx. 80cm/31.5in_x000D_ Scope of Application: Fish Tank, Crawler Box_x000D_ How to use:_x000D_ Just put the temperature probe into the environment to be tested, turn on the controller, select the desired temperature, and press the set button. PackageList: 1 x Thermostat