Product Description [Easy to Use] There are only 3 buttons. Press the power button to turn the thermometer on/off; Press the °C/°F button to select Celsius or Fahrenheit; Press the CLR button to reset the maximum/minimum temperature. [Wide and Accurate Range] The refrigerator temperature range is -50°C to 70°C (-58°F to 158°F), and the accuracy is ±1°C/±1.8°F, so you can use it in the refrigerator and freezer. [Magnet & Hook & Stand] The digital thermometer can stand, be adsorbed, or hung in the refrigerator, which is very small and convenient for storage. [Battery Powered] The CR2032 battery (included) is used. Just remove the battery cover to replace it. Product Description: Temperature measurement range: -50°C to 70°C (-58°F to 158°F) Accuracy (±1°C/±1.8°F) Resolution: 0.1°C (0.2°F) Power: CR2032*1 Size: 8.9x6x1.6cm Material: ABS Usage method: Press the °C/°F button to switch between Celsius and Fahrenheit display. Press the CLR button to clear the maximum and minimum temperature memory values.