WATERPROOF: With the sealed ring design, the aquarium thermometer can fully submerge in water, the water temperature measurement is more accurate. EASY TO USE: No instructions needed. This is the easiest aquarium thermometer on the market, with no buttons to use. SUCTION CUP FOR EASY PLACEMENT: Simply find the best spot in the aquarium, then secure the device with the small suction cup that will hold the thermometer in place until it needs to be removed. MEASUREMENT RANGE: The temperature range is 0°C (32°F) to 50°C (122°F) allowing you to use this aquarium thermometer in most temperature conditions.
