The Marina Aquarius Thermometer is accurate and easy to read, and ranges from 72 to 86 degrees Fahrenheit, It comes with an adhesive backing which makes it easy to mount to the outside glass and is ideal for all fresh and saltwater aquarium setups, The Marina Aquarius Thermometer is the perfect way to make sure the water temperature in your aquarium is just right for all your fish friends!, The Marina Aquarius Thermometer Features and Benefits:, - Easy to mount with the adhesive backing, - Ideal for fresh or saltwater aquariums, - Ranges from 72 to 86 degrees Fahrenheit, - Easy to read, 1, 75"" length SKU: RCHG0061