Functional and Technical Index Battery Life: The door can be opened more than 10,000 times in normal state. Under low voltage warning, the door can still be opened 100 times more. Thickness of Steel Board Standard: Door 5mm, Wall 2mm Opened by: Fingerprint, mechanical Master key Specification: Technical data: o Fingerprint identifying time: ≤0.2 seconds o Fingerprint matching time: ≤1 second o False rejection rate: ≤1% o False acceptance rate: ≤0.001% o Memory capacity: 120 fingerprints for Family type, one fingerprint for Hotel type o Power supply: 6V (4 AA batteries) o Static power supply: ≤16uA o Dynamic power supply: ≤200mA o Lifetime of battery: one year o Working temperature: -10'C to +80'C