Ratings & Reviews for First Alert 10-Year Battery, Hardwired (with Battery Backup) Ionization Interconnected Combination Smoke and Carbon Monoxide Detector
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these detectors for straightforward installation, 10-year battery life, and integrated smoke and carbon monoxide protection. Most highlight hassle-free replacement into existing brackets without rewiring, eliminating the need for annual battery changes. Many value the dual-sensor safety feature and spoken alerts. The hardwired design with battery backup provides strong peace of mind. A few report mounting bracket compatibility issues with certain older units, and some mention sensitivity concerns, but these represent a small fraction of feedback. Overall, reviewers strongly recommend these detectors for reliable, low-maintenance home safety.
Customer review summary generated by AI, including incentivized reviews.Great Features!
Would RecommendI bought this a month ago and it works great!
Verified Purchaser
I bought a few of these and they were easy to install and worked fine. However they all went bad within first 4-6 months of service (5 quick chirps/minute). Seems like the internal circuit boards were faulty after a few months and it couldn’t register AC power. Apparently a “10 year” battery dies within months without AC. Design seems a little strange to not allow easy 9V battery replacement. Also is strange that battery powered First Alert detectors (not hardwired) seem to work fine for years w...
Simple to install
I replaced an eight year old Carbon Monoxide and Smoke alarm.
Verified Purchaser
Only 1 of 5 is fully attached. Difficult to twist the alarm onto the mounting bracket. Alarms are hanging from the mounting bracket because I can't just easily twist the alarm onto the bracket. May return them for a different brand. A total waste of time and money.
Hi Cricket7, we are sorry to hear about this and greatly appreciate your feedback. We will be happy to take a look at this. At your convenience pleas...
False alarms
Would Not Recommendbought several for entire house. within 2 months started false alarms. Only way to stop beeping is with a hammer. 4 years later just hammered last one of 5 detectors.
Hi Cheryl! If the issue is still happening, feel free to reach out — we’d be happy to look into it for you. Our technical support team is available a...
Lasted less than a YEAR
Would Not RecommendDetector was purchased on August 1st 2025 and installed immediately in my rental property. I needed something that lasts a long time so myself or my tenants don't have to constantly replace batteries. Detector failed on July 17th 2026! It turns out it is at the end of of its life already! 🤦
Hi Marc, we are sorry to hear about this. We will be happy to take a look at this and help troubleshooting to make things right. At your convenience ...
Price Increases
Over 30% price increase since 3 months ago and multiple levels of product warrenty now. No longer the prime of the lot,
Verified Purchaser
10 years battery and hardwired detector
Would RecommendThis item was a replacement to my previous one same brand and model that actually provided the exact time of safety use which was 20 years. By buying the same brand I was able to plug and go to previous hardware mounted. I will continue to purchase this product and recommend it to others.
Verified Purchaser
Perfect hardwired unit
Would RecommendEasy to install
Hi Dan, we are sorry to hear about this and will be happy to make things right. at your convenience please contact First Alert Customer Support at 1 ...