This Fire Rated 4 in 1 Digital Door Lock is perfect for any buildings or apartments needing a fire rated lock. A sleek door lock with Bluetooth app, pin code, RFID card and manual key to provide quick and convenient access.
External power can be used as the backup power 4pcs batteries last for 18 months Can open the door with the mechanical key when battery is out Support interval code: It only works at a fixed daily time. Very convenient for daily fixed time babysitter, nursing etc. Violence anti-theft alert: It will alert for any violence break-in. Dual electric system design: In the even of failure of one circuit system, the other circuit system still operates normally. Such as when fingerprint fails, users still can unlock the door by password.
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