2.0" LCD Fish Tank Aquarium and Ambient Temperature Digital Thermometer
2-inch ultra large LCD display - F ahrenheit and celsius units selectable - Range: -50'C ~ 70'C for water temperature -50'C ~ 70'C for ambient/room temperature - Accuracy: +/- 1'C - Powered by 1 x 389A button battery (included) - Caution : this product is not waterproof. Do not submerge the unit under water. It is designed to work above water level