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This is a biometric door knob that replaces a standard knob on interior doors. It opens four ways: a fingerprint reader that recognizes in about 0.1 seconds, passcodes, a Bluetooth app, and a backup mechanical key. It stores up to 50 fingerprints and 50 users, and adds auto-lock, passage mode, privacy mode and an anti-peeping keypad. It suits bedrooms, offices and apartments where keyless entry helps, but it is a knob-style lock for interior doors, not a deadbolt for an exterior entry.
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This smart door knob unlocks four ways: fingerprint, passcode, Bluetooth app, or a backup mechanical key. It recognizes a fingerprint in 0.1 seconds and stores up to 50 fingerprints. It also supports passcodes for 50 users. It locks automatically after 5 seconds, and it has passage mode, privacy mode and an anti-peeping keypad.
The app lets you add household members, share access, and manage fingerprints and passcodes. You can create permanent or temporary passcodes for family, visitors, couriers or housekeepers. The app also has a silent mode and an access history. App control works only within Bluetooth range. Fingerprint data is stored locally and is not uploaded to the cloud.
The knob is made of aluminum alloy. It does not come with batteries. It runs on four AAA alkaline batteries, which last up to 6 months of continuous use. It gives low battery alerts and has an emergency power bank port. It installs with a screwdriver on US standard doors. For best recognition, keep your finger clean and dry and register the fingerprint from multiple angles.
