HD LED digital touch display: This aquarium thermometer features an LED digital display that provides clear and easy-to-read temperature values. The screen automatically enters power saving mode after 10 seconds of inactivity and can be activated by touching the power button. Offers real-time temperature display with one-touch operation; long press for 5 seconds to switch temperature units.High precision digital temperature meter: Utilizes a high-accuracy temperature sensor capable of measuring water temperatures within a range of 32–211.8°F (0–99.9°C), with a resolution of 0.1°C (0.18°F) and accuracy of ±0.5°C (±1°F). Fast update speed of up to 5 seconds allows for quick visual detection of temperature changes.Sticky design: Equipped with a transparent double-sided adhesive backing. Simply remove the protective film and attach it directly to the aquarium glass. The adhesive is washable, residue-free, and allows for repositioning. Wire-free design ensures safety for aquatic life by eliminating risks of entanglement or electric shock, providing a clean and secure environment.Long battery life: Powered by a single CR2032 battery, which lasts up to 12 months. Energy-efficient design reduces the need for frequent battery replacements. The battery compartment allows for easy user replacement when needed. Compact size of 4.5 x 3.5 x 1.5 cm ensures minimal space usage without compromising the aesthetic appeal of your aquarium.Wide application: Miniature design for easy use. Suitable for various water types including freshwater, saltwater, seawater, and tap water. Ideal for monitoring temperature in aquariums, turtle tanks, coral tanks, planted tanks, glass containers, and other pet habitats. Helps maintain a safe and comfortable environment for fish, reptiles, and small aquatic animals by preventing exposure to dangerous temperatures.