Cool green design Great aquarium thermometer, like green as it blends in well with your planted aquarium, it is accurate and easy to read. Accurate and Fast This digital aquarium thermometer has built-in high precision temperature probe, real-time understanding of aquarium temperature Accuracy: ±1 Powered by 1 * LR 44 button battery (included). Digital Display Large digital display, a practical thermometer, suitable for aquariums and aquariums. Measurement temperature range 0~50°C. with suction cup Submersible suction cup, easy to install and convenient to use. Convenient to use Mini size, compact design and easy to use, does not take up much space. It is ideal for aquariums, reptiles and small animal habitats.