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10-Year Battery Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector 2 -Pack

Ratings & Reviews for First Alert 10-Year Battery Hardwired (with Battery Back-Up) Ionization Interconnected Smoke detector 2 -Pack

4.7
620
Review
 4.7 out of 5
623 Reviews


95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The smoke detector is a reliable and quality product that provides good value. It features a 10-year battery life, eliminating the need for frequent battery changes. The detector is easy to install, with a simple plug-and-play setup and included adapters for replacing old detectors. Some reviewers noted the ability to interconnect the detector with other alarms in the home. While a few customers experienced issues with the battery life not lasting the full 10 years, the overall consensus is that this is a good smoke detector.

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

Perfect Replacement/Upgrade

Would Recommend

We had a mix of First Alert and Kidde, and the Smoke/CO models had come to the end of the 10 year life, plus we wanted to try the 10 built-in battery models. So we bought all first Alert and install couldn't have been easier. Most just attached to the old wiring and mount, where First Alert was previously used. And for the CO and Kidde replacements, we just loosened two screws, put the new mount on, and attached the Kidde to First Alert wiring adapter that was included. Two Smoke/CO and seve...

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It worked

Would Recommend

The multiple adapting cords made it easy to install as a replacement for some 20 year old units in a rental we purchased. Had to change the ceiling mount bracket so it could replace the dated versions.

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It works

Would Recommend

I was happy that the amount I needed (10) was available

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Smoke dector with battery backup

Would Recommend

Replaced our two hardwired (firefly smoke dectors with these) Dean, the Lowes Store Associate was very helpful in our decision to purchase these.

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Great Product

Would Recommend

Easy to install

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Good unit bad battery

Would Recommend

The included battery was so low that it triggered the low battery alarm within the first 30 minutes. It did fit the old mounting bracket and wiring perfectly. A bad battery is a small price to pay for a perfect fit.

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Response from FirstAlertProductExpert

Hi Pete, if you’re still experiencing this, we would be happy to assist you. Our technical support team is available and ready to assist. You can rea...

FirstAlertProductExpertJanuary 27, 2026

FirstAlert

Great replacement smoke alarms

Would Recommend

My hardwired smoke detectors were chirping and would not be satisifed with new batteries. Upon further research, we learned that they had an expiration date and one had exceded that. So we repalced them all with these, and they dont need batteries for 10 years!

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Very well priced.

Would Recommend

Easy to install.

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The Best

Would Recommend

Well, I’m looking for an I am I look for the best and usually will come with Lowe’s in any item I buy I have not been disappointed or upset and if I am, I’ll bring it back and there’s no hassle about being returned, but for this item verse alert, I have precious items in my house that I want to preserve and save my family’s number one and I only go to the best

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Easy to install, 10 yr backup battery a BONUS!

Would Recommend

Very easy to install. Replaced previous detectors (different manufacturer) that reached the end of their lifetime. With 10 yr backup batteries, no more swapping out 9v batteries!

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