EASY 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), accuracy: 2F(1C); the ORIA fridge thermometer come with Min/Max function, not only can be used in the fridge, freezer; but also can act the role of general thermometer for indoor or outdoor use 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 Standing C/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 too Mini WATERPROOF DESIGN - waterproof structure, level IPX3, can resist the damp of the refrigerator or freezer room, more durable and safer, and the mini design won't take too much places of your fridge