- Fast and Accurate Temperature Monitoring: Experience reliable water temperature readings with a rapid 5-second update speed. The gauge operates within a temperature range of -9.9 to 50 degrees Celsius, utilizing advanced sensor technology for precision. - Long-lasting Rechargeable Battery: Enjoy up to 45 days of continuous usage on a single charge, thanks to the built-in 5V battery and USB-C charging capability. This feature eliminates the hassle of frequent recharging, allowing you to focus on maintaining your aquarium. - User-friendly Design: Monitor water temperature effortlessly with a simple one-touch access feature. The 30-second auto shut-off function conserves battery life while maintaining a sleek, cordless design that complements your aquarium setup. - Enhanced Visibility: The large 2-inch digital screen with night view backlight ensures clear readings in any lighting condition. The LED display guarantees that you can check the temperature at a glance, day or night. Ideal for both beginner and experienced aquarists, this gauge provides essential temperature monitoring for freshwater and saltwater tanks. It is perfect for ensuring a stable environment for fish and aquatic plants, minimizing stress and promoting health. Use it in various settings, from home aquariums to professional setups, and trust its accuracy for all your aquatic needs.