1. Fingerprint, password, mechanical key 2. Cheap price, easy operation 3. Low battery alarm 4. Biometric Lock ... steel mechanical rational structure·Fully Automatic fingerprint update technology ·Fingerprint user capacity: 100pcs.·Can be fingerprint, PIN and key operatedFingerprints and ... : home, office room, store, will, lab, bank, hotel fingerprint lock door lock for house office or hotel FL100-C