Features:Refrigerator Waterproof Thermometer Digital Freezer/Fridge Thermometer with Hook100% Brand New And High QualityEASY TO READ - this fridge thermometer has an easy to read electronic LCD display, you can learn the accurate temperature (included max/min/immediate temperature) info of your freezer room all the time etc.DUAL-PURPOSE - temperature range: -20C to 50C (-4F to 122F)HOOK FOR STANDING OR HANGING ON - this Freezer Thermometer Equipped with foldable hook, which can be used for display by hanging in fridge and freezer rack or Free StandingC/F SWITHABLE Min/Max RECORD - simple to operate this freezer thermometer with 3 buttons, just press the on /off button to switch the thermometer on/off. Press C/F button to select Centigrade or Fahrenheit, once you reboot the thermometer, the max/min temperature will be reset tooMini WATERPROOF DESIGN - waterproof structure, level IPX3, can resist the damp of the refrigerator or freezer room, more durable and safer, and the mini design wont take too much places of your fridgeHow to replace the battery:Replace the battery when the reading becomes erratic or the display clarity fades. Open the screw and the ABS shell, and replace with a new CR2032 batteryPackage include:1 X Digital Refrigerator Thermometers (a battery included)Note:1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures.2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm)Thanks for your support :)