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.