She doesn't want that Elan doorbell because it's UAF.  Like you said, it's a $5M house.  Put yourself in her shoes for a minute..Would you want that thing hanging  by your front door?

Looks like Ernie made it with some spare parts he had laying around and a unibit.

I assume we're talking about this thing?  It looks like something a prison guard talks into to open a cell door.