You sure it is an RF3 ? They look the same as a BT80 or 78. It's the little black cylinder inside that differentiates the look of it.
'Reduces chance of REIN ' Nah, never seen it clear one up yet.
'you could get master sockets with this built in? '
No, you rip the guts out of one, and it will fit in the back off the NTE back box.