
Ratings & Reviews for First Alert 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector
Ratings may include incentivized customer reviews.
What Customers Are Saying
The combination smoke and carbon monoxide detector is generally a reliable product with a convenient 10-year battery life. It provides good value and peace of mind as a combined detector. However, some users have experienced issues with the alarm malfunctioning or going off unexpectedly, and the instructions could be clearer for installation. Overall, the product works well for many customers, but buyers should be aware of the potential reliability concerns and monitor the detectors closely after installation.
Customer review summary generated by AI, including incentivized reviews.Exactly as described
Would RecommendFirst Alert is a great brand. Very easy install, just activate the unit, two or three beeps and its good to go for 10 years. The combo eliminates having two dectors. I would definitely purchase again
Verified Purchaser
CO sensors -a good value
Would RecommendThese CO sensors were on sale at a good price.
Verified Purchaser
Too easy to Deactivate the alarm
Would Not RecommendDirections Need to be more clear making it too easy to inactivate the alarm making it useless. Once you accidentally slide the deactivate toggle the alarm is useless. Wasted money down the drain.
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
THREE WEEKS!
Would Not RecommendWe just replaced ALL of our detectors with these on 1/8/26. Overnight on 1/30/26, one kept going off. After the third time in 3 hours, we put it outside and it went off two more times within 30 minutes. Maybe faulty, but in my husband’s sleepy, very annoyed frame of mind, it no longer is functional lol THREE WEEKS and they aren’t cheap. Very frustrating.
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack
Hi TiredTexan, we are sorry to hear about this and apologize for the inconvenience. We will be happy to help troubleshooting and provide recommendati...

10 year battery life. Detects smoke and CO
Would Recommendsee below
Verified Purchaser
Loud
Would RecommendEasy to install, works like it should
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
Fair price, easy to install, long lasting battery
Would RecommendFair price, easy to install, long lasting battery, arrived quickly.
Verified Purchaser
Great Product
Would RecommendEasy to install
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
Worth the money!
Would RecommendEasy to install and bring peace of mind.
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
good price
Would Recommendso far so good
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
Simple to Install
Would RecommendVery easy to install wall mounted, simple to verify its working as well.
Verified Purchaser
Needs Better Instructions
Would RecommendThe instructions didn't mention how to activate the unit by removing a yellow strip, but don't break the plastic tab it sets in. The plastic tab permanently shuts it off. With clearer instructions, I would have given it a rating of 5.
From 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector 2 -Pack Verified Purchaser
Smoke alarm
Would RecommendExact model to replace old alarm.
Verified Purchaser
Hi JeBen, thank you for your review of the 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector. We highly ...