Programming AA939 transmitters

To program transmitters 

1. First unplug and then reconnect the harness from the siren control module. 
2. With all transmitters that need programming in hand
3. Within 10 seconds of reconnecting the power press button #1 on the first transmitter the siren will chirp indicating the first transmitter is programmed.
4. With in 5 second of the first transmitter being programmed press and hold button #1 on the second transmitter, the siren will chirp again indicating both transmitters are programmed.