Powered by one lr44 button cell (included). Temperature range -50 degree Celsius ~ + 70 degree Celsius; Operating temperature -10 degree Celsius ~ +50 degree Celsius. Large, easy to read lcd display; compact design for discrete use. Easy to apply suction cup and easy to read lcd screen; temperature readings to within 1 degree. Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water).

Best Sellers Rank: See Top 100 in Pet Supplies. Response Time: 3 seconds. Item Length: 7.1 inches. Number of Batteries: 1 Lithium Metal batteries required. Power Source: Battery Powered. Unit Count: 1 count. Age Range Description: Adult. Color: Black. Special Feature: High Accuracy. Brand: Zacro. : B01C6PE4G2. Manufacturer: Zacro. Date First Available: February 25, 2016. Batteries: 1 Lithium Metal batteries required. Item model number: ZDT1D-AUX-1. Product Dimensions: 7.1 x 4.3 x 2 inches; 2.08 Ounces. Is Discontinued By Manufacturer: No.