I think that one of these: Vision Door/Windows sensor zd2102 open/close and tamper are not triggered to different events
supports also a second external sensor
not sure which model… you need to do your own research 
I think that one of these: Vision Door/Windows sensor zd2102 open/close and tamper are not triggered to different events
supports also a second external sensor
not sure which model… you need to do your own research