¡ó Four-in-one unlocking mode 
¡ó Fingerprint/password/action/mechanical buttons
¡ó Combination verification unlocking
¡ó Semiconductor fingerprint sensor
¡ó Fingerprint collection chip
¡ó Anti-peeping fake password
¡ó User query function
¡ó Bring your own doorbell
¡ó Mechanical lock body
¡ó Slim body
¡ó Alarm function
¡ó Prevent small black box interference
Material aluminum alloy Password capacity: 300 groups Password digits 6-12 digits Card capacity 300 cards Fingerprint capacity: 50 groups Fingerprint head semiconductor 3,000 door opening records can be checked Power supply system: 1 set of 4 AA batteries, backup battery interface Low battery alarm &ª Intrusion alarm &ª Fake lock alarm × Indoor anti-lock &ª Locking method Lift handle Deadbolts Three main deadbolts Whether it is linked with the sky and earth hook. The standard product does not have the sky and earth hook. Lock tongue driving method: mainly mechanical