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Plug-in Carbon Monoxide Detector

Ratings & Reviews for First Alert Plug-in 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 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.
2243 Customer Reviews

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
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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stay safe

Would Recommend

I bought this carbon monoxide detector 2-pack as the second part of a housewarming gift for a friend who has access to gas.

April 10, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Old stock

Would Not Recommend

I purchased these in Oct 2025 and they both started beeping today. Installed new batteries and they still beep. Checked the date code and they were over 2 years old when purchased. They only have an 8 year life, so 26 months were used up sitting in stock.

April 10, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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Response from FirstAlertProductExpert

Hi Jerry, thank you for your review of the Plug-in Carbon Monoxide Detectors. This product has 7 years from the date of purchase. This warranty is va...

FirstAlertProductExpertApril 13, 2026

FirstAlert

CO detectors a MUST

Would Recommend

CO detectors a MUST, don’t overlook this safety issue. These are easy to use and last years.

April 10, 2026
From Plug-in Carbon Monoxide Detector 2 -Pack Verified Purchaser
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It’s great

Would Recommend

Easy to install

April 10, 2026
Verified Purchaser
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This carbon monoxide detector is easy to install.

Would Recommend

The back side of the detector has a list of what the number of beeps indicate.

April 9, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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It works perfectly

Would Recommend

I like the price and the ease to install

April 9, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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Good for ten years

Would Recommend

Easy plug in

April 8, 2026
Verified Purchaser
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My time isn’t free.

I’m not reviewing this. Lowes should have vetted this product before selling it to customers

April 7, 2026
Verified Purchaser
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Response from FirstAlertProductExpert

Hi, we are sorry that you feel this way. We would like to get the details about what you are experiencing with your detector and help making sure tha...

FirstAlertProductExpertApril 10, 2026

FirstAlert

Family Life Saver

Would Recommend

Reasonably priced. Easy to set up.

April 5, 2026
From Battery-operated Carbon Monoxide Detector Verified Purchaser
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