Here is another smart door lock that you can interact with from your smartphone. The HAIFUAN Bluetooth Digital Lock can be unlocked with a card, code, app, or key. It is compatible with Amazon Alexa and has an illuminated keypad.
More gadgets like this: here
The device supports up to 150 user codes. You can easily create and send temporary code to others. The lock is smart enough to let you know when it is running low on battery.
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