1.Adopt international advanced sensor technology, ensuring the reliable quality. 2. Use 4 AA standard alkaline batteries. 3. Convenient Installation. Directly install for knob locks. 4. Rotatingknob avoiding violent damage.5. Add and delete the fingerprint on the lock directly. 6. Unlock ways: Fingerprint + keypad + Mechanical key.7. Upper cover reader protection8. All enroll finger will not lost when battery replacement9. Low battery power warning function10. 2 years manufacturer guarantee
Fingerprint Lock