features pre-wired cord with a plug to install in your electrical socket, a output socket to plug your appliance, and the LCD display shows current temperature and start/stop temperature. This device is fairly simple to set up and adjust, switch to heating or cooling mode freely. It is very accurate in keeping the temperature at the desired level. Plug and play design, easy to use. It is suitable for freezer, conditioner, green house, dog house,incubators, etc. Features: Show the measured temperature, start temperature and stop temperature at the same time. Digital LCD display for clear readings, 4 buttons for easy operation. Pre-wired cord with a plug, plug and play design for convenient use. Heating/refrigeration modes, users can set the start/stop temperature freely. Temperature measuring range: -50C~110C; control precision: 0.1C. Also with temperature correction mode. Indicator light for indicating working state, it will blinking frequently and buzzer alarm when over range. Suitable for a wide range of applications, such as fish tank, floor heating, green house, etc.