features a plug to install in your electrical socket and the LCD display shows current temperature and start/stop temperature. This device is very easy to set up and adjust, switch to heating or cooling mode freely. It is very accurate in keeping the temperature at the desired level. It is suitable for freezer, conditioner, greenhouse, dog house, incubators, etc. Features: Display the current temperature, start temperature and stop temperature at the same time. 3 buttons for easy operation to control temperature intelligently. Heating/refrigeration modes, you can set the start/stop temperature freely. With large and clear LCD triple display for better readability. Wide temperature measuring range -55°C~125°C (-67°F~257°F), resolution: 0.1°C. Temperature sensing probe with waterproof sensor. Indicator light for indicating working status. Used for temperature controlling in aquarium, aquaculture, transportation, fish tank, floor heating, greenhouse, etc.