Descripción:
>4-way opening: Mifare Card, password, fingerprint and mechanical key
>Voice prompt: All settings can be finished by following voice prompt
>Privacy password: xxx+password+xxx, preventing password to be seen by others
>Passage Mode and Non-disturbance Mode optional
>Auto lock when come across a consecutive invalid passwords or cards
>Low Voltage alarm(?4.5V), doorbell
>Huge storage?50 cards, 50 passwords and 50 fingerprints
>Emergency power supply outside
>Three colors optional
>Zinc alloy material