Always wondering if your water is too hot or too cold?
This is the perfect solution for you; our Digital Dual Scale Color Changing Temperature Sticker
Simply stick on the outer surface of the bottle. It is simple to use and convenient to read.
Dimension: 13 cm *1.8 cm
Measurement range: Celsius degree18-34°C, Fahrenheit degree 64-93°F.
The thermometer changes its color according to the surrounding temperature. If the surrounding temperature is 27°C, then the background of scale mark 27°C will turn colorful and other scale marks remain black.
*Do not put in dishwasher or put in water.