Plug-In CO Alarm
Plug-In CO Alarm
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First Alert

Plug-In CO Alarm

Key item features

Plug-In Carbon Monoxide Alarm with Battery Backup
Current price is $23.99
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Customer ratings & reviews

4.6 out of 5 stars
stars207 ratings70 reviews
How item rating is calculated
  1. 5 stars81% (167)
  2. 4 stars9% (18)
  3. 3 stars3% (6)
  4. 2 stars2% (5)
  5. 1 star5% (11)

Reviews summary

Pros

  • : Installation takes minimal time and effort.
  • : Allows for convenient power connection without batteries.
  • : Offers good value at this cost.
  • : Device offers both plug-in and battery power sources.
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Showing 1-3 of 70 reviews

Feb 1, 2026
JIM
Item details
Size: 8.50" x 6.75" x 2.25"
5 out of 5 stars review

Verified Purchase

Great CO Detector (I hope)

I like that these are plug-in as primary source of operation. They also have a 9v battery back-up, w/ the battery included. I decided to buy a "trusted" brand instead of another unknown brand. My previous brand was Kidde, which also worked well, although they never alarmed the entire 7 years that I owned them. Hopefully, these work. Not sure how one can be tested. Maybe by burning paper?

Helpful?3X65B9WVB13R991729050
Apr 11, 2026
Patti
Top Reviewer
Item details
Size: 8.50" x 6.75" x 2.25"
5 out of 5 stars review

Verified Purchase

Very happy with this carbon monoxide alert.

This First Alert replaced our last one that we had for 12 years. Never had any problems with the old one, it lasted one year over the date when it was bought, so I think that's a pretty good indication of what kind of product it is. Thats why we purchased another one of these. Easy installation, just put it in 9 volt battery which comes with it and plug it into your wall, easy peasy.

Helpful?3X65B9WVB13R991729050
Feb 12, 2026
Kathy
Top Reviewer
Item details
Size: 8.50" x 6.75" x 2.25"
5 out of 5 stars review

Verified Purchase

Replace previous

I rent so don't know when this was installed. I've liven here 3 months short of 7 years and just now replacing it. It is the exact same one it replaces. Extremely easy to install. Was impossible to miss when the unit told me it was expired. 3 short beeps then increasing to 5 short beeps. Unplugged it and took out battery until I replaced it within two days. It is plugged in close to my newly installed brand new furnace and air conditioning unit.

Helpful?3X65B9WVB13R991729050