If I got an SMS that my front door was opened in the middle of the day, I'd call my wife to see if she went home early. If she didn't, I'd call my neighbors and/or the cops.
My point on light switches is that (unlike outlets, which could just have a pass-through unit) they require someone actually un-attach and re-attach wires, which many/most home owners aren't super comfortable with. Even if they are, it's a meaningful time investment in comparison.
My point on light switches is that (unlike outlets, which could just have a pass-through unit) they require someone actually un-attach and re-attach wires, which many/most home owners aren't super comfortable with. Even if they are, it's a meaningful time investment in comparison.