I have some quick questions about the Keyfob RF Remote Control - 315MHz (cold not find the answers on the product pages).
If using a TX and RX to trigger a relay board (no controller and the non-addressing/non-bidirectional would be fine):
1) Does this item comes with a security measure to prevent cloning and other issues?
2) Is there a limit on how many TX can control one RX?
We would need some security covered as the use would be to control an industrial rolling-up metal gate.
Thanks for any info and help you can provide.