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Battery-operated Carbon Monoxide Detector

Ratings & Reviews for First Alert Battery-operated Carbon Monoxide Detector

4.6
2241
Review
 4.6 out of 5
2243 Reviews


94% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this carbon monoxide detector for its reliability and ease of use. Most highlight effortless installation requiring no tools and taking just minutes to set up. Many emphasize the peace of mind and emotional reassurance the device provides for home safety, particularly for families with gas appliances. Reviewers consistently commend the affordable price-to-performance ratio, calling it excellent value. The detector works as advertised with consistent functionality and battery backup reliability. A few report minor issues with battery door installation, but these are vastly outweighed by positive feedback. Overall, customers strongly recommend it as an essential, cost-effective safety device.

Customer review summary generated by AI, including incentivized reviews.
2243 Customer Reviews

Quick to install.

Would Not Recommend

No connections needed, just a couple of screws to the wall. The batteries do need to be replaced.

April 16, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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CO detector

Would Recommend

Easy instal. Just like the ones we put in 7 years ago.

April 16, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Perfectly sized

Would Recommend

Getting the battery door open and installing battery were difficult for me.

April 16, 2026
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Easily installation for the CO2 alarm

Everyone should have CO2 alarm, especially if you use natural gas

April 16, 2026
Verified Purchaser
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Very expensive

Would Recommend

Easy to install

April 16, 2026
From Plug-in Carbon Monoxide Detector Verified Purchaser
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Could save your life for under $30.

Would Recommend

Quick and easy to install.

April 16, 2026
From Plug-in Carbon Monoxide Detector Verified Purchaser
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Check date of manufacture per Colorado Springs .

Would Recommend

Seems to be very simple alarm.

April 16, 2026
Verified Purchaser
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Check the manufacture date before purchasing.

Would Recommend

Just put them up.

April 16, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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As important as a smoke detector but often overloo

Would Recommend

It is harder getting it out of the package than installing it. Very easy.

April 16, 2026
From Plug-in Carbon Monoxide Detector Verified Purchaser
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Just as advertised

Would Recommend

Works great!

April 16, 2026
Verified Purchaser
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Easy to install.

Easy to install. Cane with batteries. Has worked well.

April 16, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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how to replace battery

Would Recommend

easy to install

April 16, 2026
From Plug-in Carbon Monoxide Detector Verified Purchaser
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It's worth having in your home.

Would Recommend

Easy to install

April 15, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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