At home I have the Google
Nest Smoke and CO detectors and I have to say, if its possible, and I'm sure it would be, with onboard WiFi
, they would be my choice of detector. They give a warning of levels rising, going Bong Bong Bong, then speaking "be aware there is smoke in the kitchen, the alarm
might sound, the alarm
is loud" or whichever room they are in/set for. If you clear the smoke they go back to monitoring. I have three in the house, they all sound and speak together, they do an automatic network and self test, monthly, I think, and as a great bonus they light up as you move underneath them at night providing an emergency lighting
. The ones I have run on replaceable AA lithium batteries
, though mains powered are also available. I have not had a better detector ever and I know that's saying a lot, but they really do appear good. Expensive, but very good. Of course I hope never to actually have to use them.
The downside being the need for WiFi
for setup, after the setup they form their own network independent of WiFi. I don't know what they use but it works.