Measurement Range The refrigerator thermometer has a temperature range of -20C to 50C / -4F to 122F, with a measurement accuracy of 1C / 2 f. High-precision temperature measurement brings more safety to food in your refrigerator. MIN and MAX RecordsIt has the function of recording MIN and MAX temperature, providing you with historical temperature readings , you can easily monitor the refrigerator temperature changes, and historical data can be cleared via the reset button. Large LCD displayEach digital freezer thermometer has a large LCD display, 'large reading space and clear numbers, allowing you to quickly get the measurement results at a glance. Easy to place You can place the refrigerator thermometer in different ways . It can stand on the refrigerator surface by a hook or hang on the refrigerator shelf by a hook. Waterproof design, easy to maintain.