Accurately measure the internal temperature of your food with a large, easy-to-read display and full temperature readings in 2 to 3 seconds. This thermometer displays °F and °C, has right or left handed display that rotates 180° for easy viewing, and a temperature range of -40°F to 660°F. It also features a backlit display for nighttime viewing and a low battery display indicator. The thin probe tip make for easy measurement and it automatically powers on when probe is opened and shuts off when closed. Also, you can press the hold button to lock the temperature reading. You can calibrate the thermometer by inserting probe tip in know water temperature (ice water 32°F, boiling water 212°F). Two AAA batteries are included.