




Easily install the First Alert SMCO200 Battery-Operated Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design. The alarm is half the depth of a standard alarm and provides reliable 2-in-1 smoke and carbon monoxide protection. Meets new industry standards with First Alert’s Precision Detection advanced sensing technology.
First Alert’s Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
Provides reliable 2-in-1 protection against both smoke and carbon monoxide
Slim profile design is half the depth of a standard alarm
End-of-life warning lets you know when it’s time to replace the alarm
Battery-operated alarm is easy to install and maintain
8 reviews for First Alert Combination Smoke & Carbon Monoxide Alarm, Battery-Operated Detector with Slim Profile Design, SMCO200, 1-Pack
Add a review
$30.60

Beardless1 –
Good product
Easy to install. Seems to work great. I’ll give you an update in 10 years. 😉
Peter –
HOPE! I have faith that it will perform if required.
This unit is very easy to install and I hope it never goes off.
Kirk Hendrick –
No issues.
Solid. I trust it will work as designed!
Stuart Buttlaire –
Solid but missing one thing
Solid smoke and CO2 alarm. Only 4 because it has no sticky tape on the back vs drilling into the ceiling
Jamie –
Product as described
Haven’t had this very long, but appears as described. Easy to install. I like the fact that I can replace the batteries when they run low. My last one had an internal battery and was 9 years old and it began chirping. The nice option of having one with a battery is when it’s time to replace the unit around 10 years lifespan, I have time to replace it. With the internal battery, I had to rush to replace it and was without any system for over a week.
Rex –
Great seller
Easy installation great product thanks
lottalatte7 –
Easy to install
Luckily we haven’t seen how it would work in a fire. However, it doesn’t go off randomly so that’s good. It didn’t fit where my previous smoke detector was hard wired to ceiling so we just put it somewhere else.
Key –
Got to have these
Yep the best! Every house needs these in d every room