Simple to use and convenient to read. Measure the temperature of the aquarium, beer brewing and wine keg, Terrarium, greenhouse, vivarium and any type of pet tank or any place in the house The right water temperature is for the health of your fish, get beer and wine right or use in the kitchen or at home to monitor the temperature Easy to install, just peel off the back of the sticker and the transparent protective film on the front and stick it on the outside wall of the aquarium, That is, this. No battery and suction cup to worry about. Dimension: 13cm/5.12" long, 1.8cm/0.71" wide. Measuring range: Celsius degree10-40°c The thermometer changes color according to the ambient temperature. If the ambient temperature is 27°c, the background of the 27°c scale mark will change color and the other scale marks will remain black. Material: PET Quantity: 1Pc