Easy Read Aquarium Thermometer Temp Sticker

This mercury free, non-alcohol fish tank thermometer is made of PET material. Tear off the adhesive tape and stick it on the outside/surface of the aquarium for measurement. The colored marking that changes with the temperature will tell you the current temperature in degrees Fahrenheit and Celsius. Working range: 64°F~97°F (18°C~38°C). Handy and lightweight (1g). 1 9/10'' Diamenter