Large LCD display and waterproof- You can read the measurements at a glance with an extra large easy-to-read LCD display. Ideal for those who do not have better eyesight. The IPX3 waterproof structure can withstand the humidity of the cold room or thefreezer, ensuring its safe operation. Simple & Smart Operation- Easy to use thermometer with only 3 buttons. Just press the power button to turn on/off the thermometer. Press the C/F key to select Celsius/Fahrenheit. Pressthe CLR key to delete the Max/Min record. When you restart the thermometer, the Max/Min record will be reset. Wide Range & High Accuracy- The temperature range of -20~50 (-4~122) with high accuracy (1/2). You can use it in a fridge, freezer or as a room thermometer for food safetyor other occasions. Min and Max Temperature Record- The fridge thermometer provides historical temperature reading. With this function, you can easily monitor the temperature change of your refrigerator and protect yourfood security in a double way. 2 Portable Placement Choices- You can either place the stand on the table or flip it over and use the hook to hang it on a refrigerated shelf. The mini design won't take up too much room in your fridge. It is very compact andcomfortable to hold.