The Digital Refrigerator Thermometer with Max/Min Record Function comes with convenient features to help you monitor the temperature of your refrigerator effectively. Here are the key details: Big Digits LCD Screen: The thermometer features an extra-large LCD screen with big digits, making it easy to read the temperature measurements at a glance. Max/Min Record Function: This function records the minimum and maximum temperatures, providing you with historical temperature readings. With this feature, you can easily monitor temperature changes in your refrigerator, ensuring food safety. Stand and Hook for Hanging: The thermometer is equipped with a foldable hook, allowing you to hang it on refrigerator or freezer racks. Alternatively, you can use it as a free-standing thermometer. Its compact design makes it convenient to keep. Simple & Intelligent Operation: The thermometer has only three buttons for simple operation. Press the on/off button to switch the thermometer on or off. Press the C/F button to select between centigrade or Fahrenheit. When you reboot the thermometer, the max/min temperature records will be reset. Wide Range & Accuracy: The temperature range is from -20 degrees Celsius to 50 degrees Celsius (-4 degrees Fahrenheit to 122 degrees Fahrenheit) with high accuracy (1 degree Celsius/2 degrees Fahrenheit). This wide range and accuracy make it suitable for use in the fridge, freezer, or as a room thermometer for various applications. Specifications: Type: Refrigerator Thermometer Material: ABS Colors: Black, White IPX3 Waterproof Level Temperature Measuring Range: -20C to 50C / -4F to 122F Temperature Resolution: 0.1C / 0.2F