Not sure why a decent smoke/CO detector is so hard to hunt down, but I’m having a hard time finding a suitable integration to ST. Ideally I’d like to integrate into my existing smoke detectors which are hardwired in my house. I’ve seen some misc. posts about the Halo detectors working well with others, but can’t be sure. Nest seems a nonstarter as I’m not buying 4x of those. AND they don’t hardwire.
First Alert has a Z wave device on amazon, but I can’t tell it it’s a discontinued product or not.
Then there’s the relay option, where I’d add in a relay to my existing wiring and it would pick up on the alarm trigger. This would be great, other than not adding CO alarms to my system.