We are building a new house. Using information on these forums, I was planning to attach a relay and a Z-Wave window sensor to each smoke alarm, so I could implement various activities if any of the alarms go off. I’m using First Alert hardwired smoke alarms. They have an interconnect wire, which is what I planned to connect the relays to, ending up with one sensor per alarm.
I just found out today from my electrician that I am required to interconnect all the alarms in the house. This raises the following questions, which I’m hoping project here might have the answers to:
Since the alarms all have to be interconnected, when one goes off, the interconnect wire will get a voltage for ALL the alarms. So does this basically mean it only makes sense to have one relay/sensor combination for the whole house, rather than one for each alarm?
Is there any way I can still set things up with multiple sensors do I can know which alarm triggered all the others? It seems odd to have all the alarms in the house go off, without having any good way to know which alarm started it all. But with just a single interconnect wire, I’m not sure there’s any way to pull that off?