... DOOR LOCKS 1.ZINC ALLOY DIE-CASTING 2.3 GRADES,99 USERS,297 FINGERPRINTS 3.NETWORK,CODE FUNCTION 4.EASY ... LOCK , PASSWORD DOOR LOCKS1.ZINC ALLOY DIE-CASTING2.3 GRADES,99 USERS,297 FINGERPRINTS3.NETWORK,CODE FUNCTION4.EASY OPERATION5.WATERPROOF ... &DUSTPROOFINTELLIGENT FUNCTION:1. 3 users grades: Administrator, User, Guest. 2 .Administratorhas the highest grade ...