Shopping Cart

Your cart is empty.

Your cart is empty.

First Alert SMICO110, 10-Year Battery Combination Smoke & Carbon Monoxide Alarm, 1-Pack

4.3 (8) Write Review
Free shipping on orders over $29.99

$43.04

$ 18 .99 $18.99

In Stock

About this item

  • First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
  • 10-Year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
  • End-of-life warning lets you know when it’s time to replace the alarm
  • Provides reliable 2-in-1 protection against both smoke and carbon monoxide in an easy to install alarm
  • Test/silence button for efficient testing to ensure alarm is working properly


Install convenient 2-in-1 protection with the First Alert SMICO110 10-Year Battery Combination Smoke & Carbon Monoxide Alarm. This combination smoke and carbon monoxide alarm meets new industry standards, is easy to install and doesn't require battery replacements for a decade.


Bonnie Moore
Reviewed in the United States on January 5, 2025
Needed a replacement and could not find on locally. Amazon had one! Thank you
Rachel M. Katz
Reviewed in the United States on July 30, 2024
Purchased two and one never worked the second barely worked. Read directions and reviews thoroughly about making sure the alarms were full in the bases before test, etc etc and nothing or on and off success with one. This is a huge safety hazard if people put these up without testing and don’t realize they are defective. Had to return both and then instead purchased the same brand alarm from COSTCO that work with ease right out of the box.
OK
Reviewed in the United States on June 24, 2024
At first, I thought it arrived dead. I hit test, nothing. Dead battery? I read the teeny-tiny directions twice, no help. Googled it. Apparently, the First Alert SMICO110 Combination Smoke & Carbon Monoxide test button only works when the alarm is firmly seated into its mounting bracket. Firmly press it into its place and it works great.Bad instructions, good alarm. Hope this helps somebody else.
Paul Vande Hei
Reviewed in the United States on December 15, 2024
We needed to replace the ones we had so this was perfect
Elaine Dahl
Reviewed in the United States on December 13, 2024
I was concerned because I couldn’t make them work (and I bought six). Remember to set it in the attachment before trying it out. It won’t beep if not attached.
Shawna Chambers
Reviewed in the United States on December 12, 2024
Just don't love the flashing green light cause I'm a light sleeper. Thankfully, it's not too bright
JimSB
Reviewed in the United States on November 3, 2024
Easy set up and excellent instructions. Best of all, it's long life!
David Anderson
Reviewed in the United States on October 10, 2024
I thought the alarm didn't work. Then I saw comments that it needs to be seated in the mounting bracket to work. That proves to be correct. Unfortunately the user manual neglects to mention this.