[Newest Version] iMagitek Waterproof Digital Refrigerator/Freezer Thermometer, Large Digital Display Easy to read: This fridge thermometer has an easy to read electronic LCD display that you can learn the accurate temperature (included MAX / MIN / IMMEDIATE temperature) info of your freezer room all the time. Waterproof design: Waterproof structure, level IPX3. Can resist the damp of the refrigerator or freezer room. More durable and safer. Portable Settings: Equipped with foldable hook, which can be used for display by Hanging in fridge / freezer rack or Free Standing only. Sensor ranges: -4 to 122 F (-20 to 50C) to ensure food is being stored at the appropriate safe temperatures to Extend the usage life and end early spoiling. Extensive Measuring Range: the range is from -20 to 50 C(-4 to 122 F) to ensure food is being stored at the appropriate safe temperatures to extend the usage life and avoid early spoiling. Also, it can be placed indoors or doors for the temperature test.