I’ve searched and searched but not found anything remotely similar. Does such a thing exist?
I’ve got mains powered smoke alarms in the three main rooms in my house, and I feel they could do more.
I’m thinking they could house not only the alarm but also a motion detector and google home speaker/mic.
The closest you’ll get to that are the Nest Protects.
The main reason is that smoke / fire / CO detectors are highly regulated, so they frown on having a bunch of additional features in them that could cause them to fail / misbehave. Nest was forced to recall all of their Protects originally for these types of reasons and they had to make them “dumber”.
-Rob