BIG DIGITS LCD SCREEN: An easy-to-read extra-large LCD screen provides quick, at-a-glance measurements. MAX&MIN RECORD FUNCTION: Records Min and Max temperature provides the historical temperatures readings. With this feature, you can easily monitor the temperature change of your refrigerator and provide double protection to your food safety. STAND AND HOOK FOR HANGING: Equipped with foldable hook, which can be used by hanging in refrigerator and freezer rack or free standing only, it's very compact and convenient to keep Simple & Intelligent Operation: There are only 3 buttons Simple electronic thermometer. Just press the on or off button to switch the thermometer on/ off. Press °C/ °F button to select centigrade or fahrenheit. Once you reboot the thermometer, the max/ min temperature will be reset. WIDE RANGE & ACCURATE: The temperature range is from -20degree Celsius~50degree Celsius(-4~122) with high accuracy (±1°C/±2°F) allowing y, or to use this in the fridge, freezer or as a room thermometer for food safety or other applications. Specifications: Type :Refrigerator Thermometer Material :ABS Color: black, white Waterproof level :IPX3 Temperature Measuring Range :-20°C~50°C/-4°F-122°F Accuracy: ±1°C (±2°F) Resolution :0.1°C(0.2°F) Package Included: 1*Refrigerator thermometer