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  2. Smart lock - Wikipedia

    en.wikipedia.org/wiki/Smart_lock

    Industrial smart locks (passive electronic lock) are a branch of the smart lock field.They are an iterative product of mechanical locks like smart locks. However, the application areas of industrial smart locks are not smart homes, but fields that have extremely high requirements for key management, such as communications, power utilities, water utilities, public safety, transportation, data ...

  3. 55 Cool Tech Gadgets Our Gear Editors Loved Testing This Year

    www.aol.com/lifestyle/40-wildly-innovative-tech...

    Control the lock through the GeekTale phone app, through your fingerprint, or through the secret emergency back-up key lock. Shop Now. ... $69.99. Fingerprint Door Lock, Biometric Door Lock Keyless.

  4. This $25 fingerprint padlock is great for holiday travel

    www.aol.com/news/25-fingerprint-padlock-great...

    Get a mini lock for your luggage or valuables that unlocks with your fingerprint, now only $25. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: ...

  5. Electronic lock - Wikipedia

    en.wikipedia.org/wiki/Electronic_lock

    The key contains a power supply device, usually a rechargeable battery or a replaceable battery in the key, used to drive the system to work; it also includes an electronic storage and control device for storing the identification code of the lock. The software is used to set and modify the data of each key and lock. [2]

  6. Key retainer - Wikipedia

    en.wikipedia.org/wiki/Key_retainer

    A key retainer device (KRD) is a small metal unit that is wall or door mounted, usually designed for the interchangeable core that retains one key (Key A) while the second key (Key B) is used for authorized purposes. When the key in use (Key B) is returned into the key retainer, the key held captive (Key A) is turned and then can be released.

  7. Padlock - Wikipedia

    en.wikipedia.org/wiki/Padlock

    The key of this type of electronic padlock is no longer a key in the traditional sense, but is unlocked through mobile phone Bluetooth, near-field communication (NFC), and fingerprint. Unlike active electronic padlocks, passive electronic padlocks do not require electricity which makes their use environment more extensive.

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