Feature: 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℃~110°C, 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 Material: Plastic Plug and Voltage: 110V US Plug Weight: Approx.400g/14.1oz Resolution: 0.1℃ Measurement Accuracy: ±1℃ Measuring Range: -40~100℃ Temperature Control Range: 16-40℃ Storage Temperature: -30~70℃ Panel Protection Level: IP65 Whole Machine Power Consumption: ≤3w Operating Environment Temperature: -10~60℃ Operating Environment Humidity: 10%~90% (no Frost) Input: an NTC Sensor, Cable Length: Approx. 80cm/31.5in Scope of Application: Fish Tank, Crawler Box How to use: Just put the temperature probe into the environment to be tested, turn on the controller, select the desired temperature, and press the set button.. Package List: 1 x Thermostat