Pairing the remote control with the relay module:
Press the button on the relay module for 2 seconds until the indicator LED goes out. Press a button on the remote you want to pair. Successful pairing is indicated by flashing of the LED.
Several ARF433 remote controls can be paired with the relay module.

Jumper setting:
L: A paired button on a multi-button remote turns the relay on, while the other buttons turn it off.
T: You can turn the relay on and off with the paired button.

Delete pairings:
Press the button on the receiver for approx. 5-6 seconds.
Successful deletion is indicated by flashing of the LED.