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10-Year Battery, Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

Ratings & Reviews for First Alert 10-Year Battery, Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector

4.6
585
Review
 4.6 out of 5
585 Reviews


90% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The First Alert smoke and carbon monoxide detector is generally well-received, with many users praising its easy installation and 10-year battery life. The device effectively alarms when smoke or carbon monoxide is detected. However, some users experienced installation issues, such as compatibility problems with the mounting brackets or wiring. A few also felt the product was overpriced. Overall, the detector is considered a reliable and convenient safety device, though the installation may require some effort in certain cases.

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

Safety first. This is a great product

Would Recommend

Just what I needed

May 14, 2026
Verified Purchaser
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Piece of mind device

Would Not Recommend

I like that this product does not have replaceable batteries thus eliminating any maintenance of this unit. This SD/CO unit has a 10 year life span as does its batterie(s). After 10 years, it must be replaced to maintain service coverage which is normal for these types of devices.

May 13, 2026
Verified Purchaser
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Easy to install.

Easy to install.

May 12, 2026
Verified Purchaser
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Quick to install

Would Recommend

As described

May 12, 2026
Verified Purchaser
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Way too sensitive.

Too sensitive. Every time I use my stove top it goes off, and it's not even that close to it.

May 11, 2026
Verified Purchaser
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Response from FirstAlertProductExpert

Hi Chop, thank you for bringing this to our attention. To reduce nuisance alarms from cooking, keep it at least 10 feet away from cooking appliances ...

FirstAlertProductExpertMay 12, 2026

FirstAlert

A $60 mistake waiting to happen

Would Not Recommend

There is a plastic tab that needs to be removed to use this device, but it sits right on top of a switch. Naturally, you’d assume this is the "on" switch—it’s not. Flipping it immediately bricks the device, and there’s no way to reset it. While there is a tiny warning on the unit itself, there is nothing in the printed manual about the tag to be removed. $60 down the drain due to a massive design flaw.

May 10, 2026
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Response from FirstAlertProductExpert

Hi Mouner, we are sorry to hear about this. We will be happy to take a look at this and replace your unit under warranty. At your convenience please ...

FirstAlertProductExpertMay 12, 2026

FirstAlert

Easy to install

Would Recommend

Easy to Install

May 10, 2026
Verified Purchaser
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Easy installation in a pinch

Would Recommend

Easy to install when all my smoke detectors needed to be replaced all at once .

May 10, 2026
Verified Purchaser
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Great fix and forget smoke/monoxide detector

Would Recommend

Very easy to install, just be sure you have the right hard wire connections complete in the ceiling. If you do, it’s a simple plug and play.

May 9, 2026
Verified Purchaser
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Quick and easy replacement

Would Recommend

We bought this because our old smoke/CO detector reached the end of its 10 year lifespan. Replacement was quick and easy. I really liked that it still uses the same wiring harness as the old one so I didn't have to do any rewiring.

May 6, 2026
Verified Purchaser
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Easy Install

Would Recommend

Replaced a Kidde detector, it came with a connector that worked perfectly. Installed in about 5 minutes. We will see about longevity, so far so good.

May 6, 2026
Verified Purchaser
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enjoy a challenge

Would Recommend

easy install

May 5, 2026
Verified Purchaser
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dector

Would Recommend

It seems to be a good product, has a warranty for 10 years, con, not able to replace the battery

May 4, 2026
Verified Purchaser
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Easy installation and good product.

Would Recommend

Very easy to install and a good value.

May 4, 2026
Verified Purchaser
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Easy Install

The smoke/carbon monoxide detector was super easy to install.

May 3, 2026
Verified Purchaser
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Must have for every home

Would Recommend

Easy to install

May 2, 2026
Verified Purchaser
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