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Battery-operated Carbon Monoxide Detector

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

4.6
2241
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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

Good device

 Would Recommend

Easy to use

February 18, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Excellent Value CO2 Detectors

 Would Recommend

Great value for the price. Set them up with no issues.

February 17, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Easy to install

 Would Recommend

The alarms are easy to install because of the guide provided in the instructions, which shows you where to place the nails in order to line up with the alarm. It's nice to have a 2-pack for multiple areas of the home.

February 17, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Easy to install product

 Would Recommend

The alarm is easy to install because of the nail placement guide provided in the instructions. Overall, works as you would expect.

February 17, 2026
Verified Purchaser
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Safety comes 1st !

 Would Recommend

Grt product, is easy to install and test check .

February 17, 2026
Verified Purchaser
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Like it

 Would Recommend

I say to install

February 16, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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CO2 detectors

 Would Recommend

I haven't installed them yet, but they seem to be fine.

February 15, 2026
From Battery-operated Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Good quality product

 Would Recommend

It’s a great product for a great price.

February 14, 2026
Verified Purchaser
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Great CO detector with battery

 Would Recommend

Came with a battery and was exactly as described!

February 14, 2026
Verified Purchaser
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CO2 detection

 Would Recommend

works well to identify any CO2 when using the heater indoors

February 13, 2026
Verified Purchaser
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