After the birth of my daughter, my wife want to have some smoke sensors. So far, so good. But I don’t know, which way I should take. My complete infrastructure is based on z-wave.
But the nest also Looks interesting.
Whats your recommendations?
I only know the Nest Protects, which also detect carbon monoxide, and have been trouble-free for me. Their first model had a few problems for some people, but I have to think they sorted those out in the new model. The Nest binding will lag up to one minute before reporting to openHAB (unless you change the polling refresh rate), whereas Z-Wave smoke sensors would typically have much less latency. The lag doesn’t matter to me, but it might to others. I also don’t mind the fact that the Protect communicates to the binding over the Internet, but ymmv. The Protect has both wired and battery-only models.
I got Fibaro Smoke Sensors up and running, both battery and DC powered:
Don’t get the First Alert 2-in-1 Z-Wave Smoke & Carbon Monoxide Alarm. It does some weird stuff. @chris took a stab at trying to make it work but I think abandoned the effort.