... key stores 64(64 fingerprint keys) and opens a lock, ex-4 fingerprints are governor's fingerprints2, With the ... way of unlocking6, Selection of Fire Retardant, the adopt Stainless steel casting, the lock adopt zinc alloy die-casting, ... energy effect possessing singly makes product’s life longer9, Lock design using internationally accepted , beautiful generous. SpecificationsFingerprint matching ...