My house has a set of First Alert OneLink smoke+CO detectors and the Insteon smoke bridge. I have a little bit of automation built around it with Indigo - sending me messages when anything happens, turning on every light in the house and shutting down the HVAC in case of an alarm, etc. They're OK but not great.
Last night at 3am the family was woken up by the whole system announcing the "malfunction" of the detector in the kitchen - seems that it's hit the lifetime of the CO sensor (7 years). At a technical level I appreciate that the system doesn't really have a better way to let me know what's up than to use its own alert system (and it has no idea what time it is), but it's rather frustrating.
As it turns out, 3 of my 7 detectors are that age, which is enough that I'm wondering if I should change my strategy. Any thoughts on the merits of a few different options:
1. More of the same, they're still available. https://www.amazon.com/dp/B000EVO7C2
2. The "Smart" OneLink version. Square, 5-year-battery, sounds like it should interoperate with the other stuff I've got but also seems like it would fail the same way. https://www.firstalert.com/more-safety- ... 42136.html
3. The First Alert ZCOMBO - switches over to Z-Wave, but doesn't trigger the other alarms in my house, which seems like a problem (1890 house, probably not going to manage to hardwire alarms).
4. Change gears entirely. Nest Protect? X-Sense? Something else?