How does RFID access control work?

How does RFID access control work?

RFID access control uses a system of tags, readers, and computer servers to allow door access to preregistered residents who present the correct credentials. To use an RFID access control system, residents hold their credentials — usually a key fob or card — up to the reader.

How do you reprogram an RFID keypad?

https://www.youtube.com/watch?v=kWIfo3NQv7k

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