1. High - Precision Monitoring: This electronic water thermometer is designed with advanced sensor technology, capable of providing high - precision temperature readings for your fish tank. The digital display clearly shows the water temperature, allowing you to accurately monitor the aquatic environment, ensuring the comfort of your pet fish. 2. Convenient External Installation: It is an outside - the - tank thermometer, which can be easily attached to the side of the fish tank without the need to submerge in water. This not only simplifies the installation process but also protects the device from potential water damage, making it more durable. 3. Suitable for Aquatic Pets: Specifically tailored for fish tanks, it meets the needs of maintaining a stable water temperature for various types of pet fish. Whether you have tropical fish or cold - water fish, this thermometer helps you create the ideal living conditions for your aquatic companions.