
I have an electronic door lock that unlocked via pushbutton, and wanted to improve the system with a keychain unlock feature. This worked perfectly. The key fobs are easy to program and pair with the relay. It supports normal open, normally closed, and flexible options for holding the connection for different durations. It's one of those devices you can set-and-forget - perfect for hidden systems you want to just "work" without constant tinkering.

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