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Plug-in Carbon Monoxide Detector

Ratings & Reviews for First Alert Plug-in Carbon Monoxide Detector

4.6
2246
Review
 4.6 out of 5
2246 Reviews


94% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this carbon monoxide detector for its straightforward plug-in installation, reliable performance, and affordable price. Most highlight how simple setup is, with many noting they simply plugged it in without complications. Reviewers consistently report the device works as advertised and provides essential peace of mind for home safety, particularly those with gas appliances. Several mention years of dependable operation. A small number encountered minor issues with the battery door mechanism, but these isolated cases do not diminish the strong overall satisfaction and recommendation rate among users.

Customer review summary generated by AI, including incentivized reviews.
2246 Customer Reviews

Long lasting.

Would Recommend

Great product- had previous one for 5-6 years.

April 3, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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CO detector

Would Recommend

Easy to install

April 3, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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CO detector works fine.

Would Recommend

It was very easy to set up and functions as described

April 2, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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These expire so needs relpaced.

Would Recommend

Nice loud tone.

March 31, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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Great Product

Would Recommend

This was a great product that was incredibly easy to set up.

March 25, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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Life saver

Would Recommend

This product is recommended for safety and easily installed and maintained !!!

March 25, 2026
Verified Purchaser
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A great Carbon Monoxide Alarm

Would Recommend

My order came on time and was fast too. The CO alarm is exactly what I needed. Easy to use because you just plug it in.

March 25, 2026
Verified Purchaser
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The Best of the Best

Would Recommend

Nice that it comes in a single pack as well as a twin pack. Super durable, comes with a battery, ready to use out of the package. A+

March 25, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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The Best!

Would Recommend

Easy to install. Comes with a battery. Durable. Definitely the only one I ever use.

March 25, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Remains to be seen.

Would Not Recommend

Just got it so it remains to be seen. It's already 2 years od from the date on it and they only last 10 years. The last one failed and died at a little over 8 years at 3:57 AM!!! the Fire Dept and I were not amused.

March 23, 2026
Verified Purchaser
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Response from FirstAlertProductExpert

Hi MatildaQ, thank you for your review of the Plug-in Carbon Monoxide Detector. This model has 7 years of warranty from the date of purchase. We reco...

FirstAlertProductExpertMarch 23, 2026

FirstAlert