> 4 Ways opening : cards & fingerprints & passwords & Emergency Keys
> Privacy password: xxx+password+xxx, preventing password to be seen by others
> Passage Mode and Non-disturbance Mode optional and Silence Mode
> Auto lock when come across a consecutive invalid passwords or cards or fingerprints
> Low Power Alert (<4.5V)
> Huge storage: 100 cards, 100 passwords, 100 Fingerprints,
> Battery life more than 14 months (10 Units/D)
> Emergency power supply outside
> Two colors optional
> Zinc alloy material