Product Description: With minimum and maximum temperature recording function. Easy battery replacement It can be positioned in different ways. It can be attached to the refrigerator door with a magnetic back, stand on the bracket hook, or hang on the refrigerator shelf with a hook, which is very convenient Specification: Size: 8.9*6*1.6 cm Weight: 37 grams Temperature measurement range: -50 -70 / -58 -158 Accuracy: +/- 1 ( +/- 1.8 Resolution: 0.1 (0.2 Waterproof level: IPX3 Power supply: CR2032 x 1 Package included: Thermometer * 2 Wide range and high accuracyThe temperature range is -50 -70 / -58 -158, high precision (+/- 1 (+/- 1.8).Suitable for refrigerators, freezers or restaurants, bars, home and ordinary room thermometers for outdoor use. other occasions. Simple and smart operationThere are 3 buttons, easy to operate.Just press the power button to turn on/off the thermometer.Press the C/F key to select Celsius/F ahrenheit. Using the CLR key, you can clear the maximum and minimum values from the temperature memory. [Large LCD display] The 1.9-inch LCD display has large digits and the real-time temperature is clear at a glance. Min and max data records can be read simultaneously. IPX3 waterproof construction can withstand refrigerator or freezer humidity, ensuring safe working conditions. Portable Positioning Options- You can position the indoor thermometer in different ways. The magnet of the folder can be attached to the refrigerator door, or it can stand on the hook of the support and continue to hang with the hook. Refrigerator shelf, very convenient to place. The mini design does not take up much space. Highest and lowest temperature recordOn-screen information tells us the highest, lowest and current temperature at the same time, providing you with historical temperature values, allowing you to easily monitor temperature changes in the refrigerator, and protect your food safety twice.