Since water temperature is a determinant of fish health, it is important to have a good thermometer. As for the floating thermometer, designed to float vertically and equipped with suction cups to attach it to the glass wall of the aquarium, it is an accurate and easy-to-read thermometer that indicates temperature in degrees Celsius and Fahrenheit. It also has a temperature scale indicator, which is safe for most tropical fish. Suitable for fresh or salt water aquariums. Suitable for different types of water such as fresh water, sea water and tap water It can monitor the living temperature of pet tanks such as fish tanks, turtle tanks, coral tanks, planting red, glass containers, etc. [Specification] About 11cm in length, about 1cm in diameter