I've got a customer that has a rear exit door in the back of their office. They don't really care about access control for it, but would like a door contact on it so they know when someone props it open (smokers). I know that DMP has a wireless contact, but that's got direct integration into their panel. I want a direct contact input and a direct contact output so I can go into an S2 blade and have it pop up on their access control window.
I've used Dakota Alert in the past for this (UT-2500 and DCR-2500) but I'm curious to see what others have used. Seco Alarm has some stuff, but the transmitter requires external power input and I'd rather have something battery powered (there isn't power nearby and it's brick/block construction on the outside)
Open to product ideas.