Keypad - is there a motion sensor built in?

Just watched a YouTube review of the system and the reviewer mentioned that a motion sensor is built into the keypad itself. However I don’t see anywhere else that this can be corroborated. This would save me from buying a few extra motion sensors - can anyone confirm whether or not this is the case? And if so does it arm just like the regular motion sensors?

Yes, but it’s just used so that the keypad illuminates as you approach it.