Wide Measurement Temperature Range, 2F (1C): Temperature can vary and be accurate from -20C to 50C (-4F to 122F). Allows you to use it in the fridge, freezer. It can also be used as a general purpose thermometer for indoor or outdoor use. Simple & Smart Operation: Simple electronic thermometer with only 3 buttons. Simply press the on/off button to turn on/off the thermometer. Press the C / F button to select Celsius or Fahrenheit. After restarting the thermometer, the max/min temperature will be reset. Large LCD display: This refrigerator thermometer has an easy-to-read electronic LCD display, the information on the screen can tell us indicate the highest, lowest and current temperature at the same time. You can always know the exact temperature information of the freezer compartment. Battery model: CR2032 button cell * 1pcs (included) Product size: 87*61*25mm