General description This aquarium thermometer features a high-definition LED display for clear reading. It is designed for various types of water, including freshwater, tap water, saltwater, and sea water, making it ideal for monitoring the living temperature of fish tanks, turtle tanks, coral tanks, planted tanks, glass containers, and other pet aquariums. Technical specifications Temperature measuring range: 0-99°C Accuracy: ±1°C Refresh time: 5 seconds Battery: 1x CR2032 button battery (included) Installation Place the aquarium thermometer on the outside of the glass container, below the water level. Peel off the surface film and stick it to the outside of the aquarium using the self-adhesive pad. Usage Touch the fingerprint mark on the screen to read the temperature. The screen will go to sleep after 10 seconds of display to save power.