1. Wide range of applications: Ensure the temperature of aquariums such as fish tanks, turtle tanks, and reptile habitats, as well as many other environments like beer fermenters and vegetable tanks, with these multipurpose thermometers. 2. Very sensitive: By using a temperature sensitive colored bar, aquarium thermometers help you stay aware of the water temperature. The intuitive display of the current temperature with easily recognizable colored markings allows for simple monitoring, making it an indispensable tool for fish tank owners. 3. Temperature detection: Keep your little fish friends satisfied with aquarium thermometers that accurately display the water temperature at a glance. Instantly recognizable changes make it easier to understand the aquatic environment, and it does not require complicated reading. 4. Round design: Upgrade your fish tank with round thermometers. The elegant design is ideal for any water lover. Practical and stylish thermometers let you feel the ambient temperature change with the round patch, making it a addition to your tank.