Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
  Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup
 
First Alert Smoke/Monoxide Alarm SC9120B

AVAILABILITY: In Stock
Regular Price: $59.99
$47.99 SAVE $12.00
Send To Friend Print This Page
View demo video of this product by clicking here View a demo video on this product
  • Description
  • Details
  • Reviews
  • Manuals
  • Video

Hardwire Combination Smoke/Carbon Monoxide Alarm

This hardwired combination smoke and carbon monoxide alarm wires directly into your homes electrical system and the battery backup ensures your safety even during power outages. This combonation alarm detects two hazards with one simple unit. Comes with ionization technology and an electromechanical sensor. Meets new construction requirements.

This smoke & CO alarm is for you if:
You want alarms wired directly into your home's electrical system with the added safety of a battery backup.
You want to easily mute unwanted alarms with the press of a button.

Where To Place Safety Alarms: At least one near a home's sleeping area and on every level of the home.

First Alert Hardwired Smoke/Monoxide Alarm SC9120B

Hardwire Combination Smoke/Carbon Monoxide Alarm Features:

  • 120V AC with 9V battery backup.
  • Electrochemical sensor - the most accurate technology available.
  • Simple to use silence/test button with low battery chirp warning.
  • Tamper resistant locking pins.
  • Universal mounting bracket.
  • Latching alarm indication.
  • 7-year limited warranty.
Review Review this product

Rating: 4.72881355932203/5Rating: 4.72881355932203/5Rating: 4.72881355932203/5Rating: 4.72881355932203/5Rating: 4.72881355932203/5 average customer rating based on 59 reviews

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 AMAZING & GREAT! - 06/19/2013
Reviewer: DAWN MARIE HAKANEN
I WAS AMAZED AT THE EASE OF ORDERING THE PRODUCT, & THE QUICK DELIVERY TIME. IT WAS EASY TO INTEGRATE WITH MY SYSTEM [OTHER 6] & WORKED OUT PERFECTLY. THANK YOU FOR YOUR QUALITY PRODUCT, PROMPT DELIVERY & KEEPING ME ADVISED IN BETWEEN. DAWN MARIE

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Smoke Alarm - 06/12/2013
Reviewer: Sue Daly
I particularly like the battery backup because it comes out easily without having to dismantle the entire casing. So far the alarm is working fine. It was easy to install and arrived quickly. Its a nice size.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Very Good products - 05/31/2013
Reviewer: salvatore marullo
The Hardwire Combination Smoke/Carbon Monoxide alarm that we received is working perfectly.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Great Product - 05/25/2013
Reviewer: Richard Durica
I had First Alert smoke detectors installed 15yrs ago. Never any problems. I decided to remodel the house which included upgrading to smoke/carbon detectors. They were very easy to install. They appear to be good product and Im confident they will be as reliable as the smoke detectors I had for past 15 yrs.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Just right. - 04/18/2013
Reviewer: Kenneth Weyers
Just what I needed.Could just plug it into my system.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 GREAT PRODUCT - 04/13/2013
Reviewer: Wayne Culver
I replaced 2 of these with new ones. Easy reinstallation and fast shipping!

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 Great Alarm - 04/09/2013
Reviewer: Afua
The smoke alarm is very sensitive. Even using my toaster sets it off but I have low ceilings. My first one installed by the contractor had the carbon monoxide alarm go off constantly and the fire dept told me to replace it since the last 2 times showed no leak. Since I was still under warranty, First Alert replaced it free of charge and I have had no problems since 2 years. Its a great alarm.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 - 04/04/2013
Reviewer: Lyle Marlowe
Excellent device... not sure why original unit failed after only three years, but at least it tells me it is no good and needs replacement. Purchased direct from First Alert, but then found I can get for about 1/2 the price with free delivery from Amazon.com. Feel Ive been ripped-off by First Alert with their pricing.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 - 03/24/2013
Reviewer: Howard Heiss
Prompt delivery easy to install.

Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5Rating: 5/5 - 03/22/2013
Reviewer: Tammy Shumate
very good product and arrived in a timely maner

Read All Reviews

 Related Products
120VAC Hardwired Smoke Alarm with Battery Backup
120VAC Hardwired Smoke Alarm with Battery Backup
Onelink Wireless Talking Battery Operated Smoke & Carbon Monoxide Alarm
Onelink Wireless Talking Battery Operated Smoke & Carbon Monoxide Alarm
Combination Smoke and Carbon Monoxide Alarm
Combination Smoke and Carbon Monoxide Alarm
Hardwired Carbon Monoxide Alarm with Battery Back-up
Hardwired Carbon Monoxide Alarm with Battery Back-up
Onelink Wireless Hardwired Smoke Alarm
Onelink Wireless Hardwired Smoke Alarm
Hardwired Smoke Alarm with Battery Backup (6 pack)
Hardwired Smoke Alarm with Battery Backup (6 pack)
120VAC Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup
120VAC Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup
First Alert Hardwired Photoelectric Smoke Alarm with Battery Backup 7010B
First Alert Hardwired Photoelectric Smoke Alarm with Battery Backup 7010B
Carbon Monoxide and Smoke Detector (Combo Pack)
Carbon Monoxide and Smoke Detector (Combo Pack)
Battery Operated Carbon Monoxide Alarm with Backlit Digital Display
Battery Operated Carbon Monoxide Alarm with Backlit Digital Display
First Alert Child Awakening Combo Smoke & CO Alarm with Voice Location Feature, SC07CN-C
First Alert Child Awakening Combo Smoke & CO Alarm with Voice Location Feature, SC07CN-C
First Alert Child Awakening Combo Smoke & CO Alarm with Voice Location Feature, 2pk SC07CN-C2
First Alert Child Awakening Combo Smoke & CO Alarm with Voice Location Feature, 2pk SC07CN-C2