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A device for securing access, typically on a door, and typically controlled with a key or combination.
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votes
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answers
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Door lock and unlock based on authorized user proximity
I want to install an electronic lock on my office/workshop that only a specific individual(s) can unlock. … I want it to lock every time the door is closed and the room is empty but I do not want to have to use a key or pin code every time I open it. …