R7UB Digital Temperature Sticker Adhesive Thermometer Strip Display Adhesive new and high quality OOTDTY Simple to use and convenient to read. Measure the temperature of your fish for The right water temperature is very important for the for health of your fish, get your beer and wine right or use in kitchen or around the home to temperature Easy to install, just peel off the back of the sticker and the transparent protective film at the front and it on the outside wall of the aquarium, that is it. No battery and suction cup to worry about. Dimension: 13 for cm/5.12" of length, 1.8 for cm/0.71" of width. Measurement degree10-40C The thermometer changes its color according to the surrounding temperature. If the surrounding temperature is 27C, then the background of scale mark 27C will turn colorful and other scale marks remain black. Material:PET Quantity:1Pc