Smart Design: This refrigerator thermometers can also display humidity, which makes you use very convenient. Lightweight and small size will not take much room of your Refrigerator. Big digits, ideal for those people with poor eyesight. You can easily read the display with its big, and bold digits. Easy to Operate: No complicated controls, it is the simplest electronic thermometer with only two buttons. Press the on or off button to switch the thermometer on and then select Degrees or Fahrenheit. Temperature Range: The temperature range is from -20C or -4F to 60C or 140F provides crucial temperature readings for food safety applications. Perfect for the refrigerator that does not come with a temperature. Humidity range:10 percent -99 percent RH.When the humidity is between 40 percent -70 percent RH,it is comfortable. Magnetic Back, Stand ,Suction up and Hook for Hanging: You have 4 different choices for placement for the room thermometer. Either stick it to the refrigerator door with the rear magnet, or use the stand to place it on the table-top, and finally you can flip the stand over and use the hook to hang it on a refrigerator shelf, and package come with a suction back, you can put this anywhere you want Wide Range of Applications: Perfect thermometer for fridge, freezer or as a general room thermometer. It is useful for different occasions such as home, restaurants, bars, cafes. It is also a wonderful gift for your family or friends. Specification: Color: White Material: ABS Size: 6.7x 2.5x 4.3cm Temperature range:-20C to 60C Humidity range:10 percent -99 percent RH Batteries: CR2032 battery(Include) Package Included : 1 x Fridge or Refrigerator thermometer Hygrometer