Package includes: you will receive 3 pieces of digital refrigerator thermometers, ideal for you to use and monitor the temperature of your refrigerator, a shelf stand or a stand with hook, which can be used daily or at Specific Purposes Clear to Read: Each of the Digital Fridge Freezer Thermometers has a large and clear digital LCD display, the LCD display provide large reading room, you can get the measurements very Quickly at a Glance Best Temperature Monitor: There is a minimum and maximum temperature record function on the waterproof temperature thermometer, which provides you with the historical temperature readings, so that the change Your fridge temperature can be easily monitored, provide double protection for your food safety Wide Range and Accurate Reading: Our digital fridge freezer thermometer can read temperature ranges from -20?/ -4 ? 50?/ 122?, with the accuracy of 1C/ 2F and the resolution of 0.1?/ 0.2?, use this digital thermometer in your refrigerators, freezers, refrigerator rooms or general chambers for food safety or other applications Easy to use: the large display thermometers are all equipped with foldable hooks, you can hang them in the refrigerator rack or a freezer, or just keep them there on shelves or other flat surfaces, very compact and convenient to keep Features: Clear to read: Replace the battery if the reading becomes erratic or the clarity of the display decreases. Open the screw and ABS shell and replace them with a new CR2032 battery.