I like Aico and use it wherever there's a wired install that needs the units replacing. I've also used the RF cards sometimes for a tricky add on.
But, in a house with nothing already installed, I always recommend Nest.
The Protect is a much better product and works out cheaper than wireless Aico. Their only downside is you can't switch the smoke detection off (leaving Heat & CO on) to fit in a kitchen! My customers love the voice, app control, lights and the design
I had also been looking at wireless FireAngel Pro (the new W2 stuff that interlinks). From comments above, i've got my doubts now. Or is it better than the fireangel standard stuff?
Are you sure about that? Those Nest alarms cost an arm & leg don't they???
and an AICO RF base is not that expensive...
We have a Nest protect Smoke/CO alarm that was a complimentary gift when when change our house insurance several years ago..
It has the phone app thing... and is probably the most useless gimmick phone App ever written..
At the end of the day its a Smoke or CO alarm..
All I need it to do is make a loud noise if it detects something burning... or Carbon Monoxide levels are high..
There is no need for digitised ladies voice saying "CO detected open windows".. etc.. etc..
I am certainly not going to be interested in looking at a phone App in a real emergency..
In the important areas of our house we have four hard-wired Aico alarms..
I trust these far more than the Nest....
And we also have a cheapo £20 battery CO alarm placed near the boiler in the kitchen..
Which works and detects fumes from the car if I leave it running with the back-door from the garage to the kitchen open!!
The Nest alarm also detects these fumes..
but a few simple high pitched bleeps do an equally as good job as a synthesised speech message..
I did google a few suppliers for the Nest detectors after we were given our freebee, to see how they compared..
But the AICO units beat them hands down..
I'd be interested to know where you can buy the Nest detectors cheaper than AICO?
:C