【Antifreeze Alarm Function】When the temperature is too low or too high, a frost symbol will be displayed on the fridge thermometer screen. Abnormal temperatures are easy to detect. 【Waterproof Design】Our digital refrigerator thermometer is waterproof (IPX3 waterproof grade), which ensures safe and stable operation. 【Easy to 【Use】Simply press the on/off button to turn on the thermometer and select Fahrenheit or Celsius. 【Digital Refrigerator Thermometer】This digital thermometer uses precision calculations to measure temperatures from -20°C / -4°F to 60°C / 140°F. High accuracy (±1°C / ±2°F). 【3 Mounting Methods】The freezer thermometer can be placed, hung or fixed by magnet. So you have three methods to choose from to place and use it anywhere.