ApplicationWidely used in dossier cabinets, swimming baths, saunas, golfing courses, fitness center lockers, offices, companies, schools, hotels, supermarkets, filing cabinets or lockers.Specification:Unlock Way: FingerprintVoltage: DC3VBattery Type: CR2450 3V Lithium Cell Battery, yet not including in package .Capacity: 10 piece fingerprintsDoor Thickness: less 14mmOpen hole: more 18mmLock body Size: 20mm or 30 mm (need to produce,delivery time is 7 days for 30mm)Material: Zinc AlloySize:57.5*57.5*20mmPackage :1 X Lock Body1 X Screw Nut1 X Tongue Lock1 X Screwdriver1 X Manual