Features 1. Wide range and high precision: Temperature measurement range: -20 ~50 (-4 F~122 F), accuracy value: 1 , resolution: 0.1 . The refrigerator thermometer also has the function of recording the highest/lowest temperature, which can help you accurately capture the changes in the highest/lowest temperature of the refrigerator over a period of time, help you understand the performances of the refrigerator, and ensure that all food is at the ideal storage temperature. 2. Large screen for easier reading: The digital refrigerator thermometer is equipped with a high-definition large screen with clear numbers, allowing you to easily read the current temperature information of the refrigerator. 3. Waterproof&Safe: The refrigerator thermometer is made of environmentally friendly waterproof materials and has an IPx3 waterproof structure, which can work perfectly in harsh environments such as humid, cold or hot greenhouses. There is no need to worry about damaging parts due to water ingress during long-term use. More secure and durable. 4. Compact and Portable: The refrigerator thermometer with a magnetic multi angle bracket can meet the needs of different usage scenarios. It can be attached to the back of the refrigerator or freezer, or hung and placed together with the bracket; Moreover, the design of the refrigerator thermometer is exquisite and compact, which does not take up too much space. 5. Easy to operate and widely used: The digital refrigerator thermometer only has three buttons, on/off, / switching, one click to clear temperature difference, no need for other operations, convenient for the elderly and children to use. The refrigerator thermometer is suitable for various scenarios and can be used in kitchens, rooms, car refrigerators, pharmacy freezers, bakeries, distilleries, and camping. It is an ideal choice for refrigerators, freezers, indoor and outdoor thermometers. Specification Temperature measurement range: -20~50 (4 ~122 ) Measurement error: 1 Refresh frequency: 10S Working principle: Resistance temperature measurement Resolution: 0.1 (0.2 ) Waterproof structure, grade IPx3 Working principle: thermistor conversion temperature display Battery: One CR 2032 battery, the product comes with it Material: Rubber shell ABS Color: Black, White Size: 8.8 x 6.1 x 2.3 cm Weight: 45 g Package Include: 1x Digital Frigerator Thermometer