Accurate measurements - The Techatlantis aquarium submersible thermometer measures the water temperature from 0-50C with an accuracy of ±1.0C. The resolution of the display is 0.1C. 100% Waterproof - As it is placed directly in the aquarium, it is naturally 100% waterproof. Extra-strong suction cup: thanks to the extra strong suction cup, the continuous test is affixed firmly to the pane. Battery included ‚Äì The button cell battery required for operation is included so the thermometer can be used directly. Suitable for any aquarium - The thermometer is suitable for any type of aquarium. Whether it's sea water or fresh water.
