First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide Detector with 10 Year Sealed Battery Backup for Maximum Safety

By: ‎FIRST ALERT

Protect your home and family from smoke and carbon monoxide with the First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide (CO) Detector. Featuring a 10 year sealed battery backup, this detector is easy to install and provides superior customer support and build quality. Don't wait to protect your home - visit the First Alert Store today for the best Carbon Monoxide Detectors!

Key Features:

This hard-wired smoke detector and carbon monoxide alarm is designed to provide you with 10 years of worry-free protection. It features a sealed battery backup, so you don't have to worry about replacing the batteries every few months. Enjoy peace of mind knowing that you and your family are safe from the dangers of smoke and carbon monoxide.
80
B2B Rating
49 reviews

Review rating details

Value for money
91
Safety
91
Overall performance
91
Noise level
88
Efficiency
91
Easy to install
88
Design
92
Customer support
91
Build quality
91
Battery life
93

Details of First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide Detector with 10 Year Sealed Battery Backup for Maximum Safety

  • Product Dimensions: ‎2.25"D x 5.59"W x 5.69"H
  • ASIN: B01F8POA7U
  • Warranty Description: ‎7
  • Alarm: ‎Audible
  • Item model number: ‎BRK SC9120LBL
  • Pattern: ‎Alarm
  • Batteries Required?: ‎Yes
  • Sensor Type: ‎Electrochemical
  • Included Components: ‎Alarm, electrical power connector, mounting bracket, dust cover, manual
  • Customer Reviews: 4.6/5 stars of 1,308 ratings
  • Item Package Quantity: ‎1
  • Is Discontinued By Manufacturer: ‎No
  • Voltage: ‎120 Volts
  • Battery Cell Type: ‎Lithium Metal
  • Color: ‎White
  • Best Sellers Rank: #14,404 in Tools & Home Improvement #33 in Smoke & Carbon Monoxide Alarms
  • Item Weight: ‎10.9 ounces
  • Power Source: ‎Battery Powered
  • Batteries Included?: ‎Yes
  • Item Weight: ‎10.88 Ounces
  • Manufacturer: ‎First Alert
  • Batteries: ‎1 Lithium Metal batteries required.
  • Date First Available: May 6, 2016
  • Part Number: ‎SC9120LBL
  • Size: ‎1 Pack
  • Brand: ‎FIRST ALERT
  • Style: ‎Battery

Video for this product

Comments

Sam & Mike: Product is well made, very easy to install

United States on Oct 18, 2023

FL Craft Beer DudeFL Craft Beer Dude: Second purchase of this hardwired Lithium battery carbon monoxide / smoke detector. My first one costed more. Easy installation hardwired keeps Li-ion battery charged but for how many days following a hurricane? Weardated 10 years programmed to self detonate. Green LED lights when A. C. power is applied.

United States on Sep 07, 2023

Tootybug: I hired a handyman to install, thinking it had to be wired... Wrong! I just paid a lot for 15 minutes of installation. They are just unplug, and plug the new one in. So Easy! I could have done it myself. It is just like my old one, but does have Carbon Monoxide and the 10 year enclosed battery. I'll let you know if it fails, but looks good.

United States on Sep 02, 2023

Jeff in Seattle: When I moved into my house, there were three contractor grade alarms with one just being battery powered, and two interconnected. However, the two AC models did not have battery backup?!?!? The other seemed like an afterthought or they were forced to put one in to get it passed inspection. The house was built in 1991, but even then, that was inadequate. The first owner added 4 battery powered smoke alarms to the bedrooms. This menagerie of alarms and functionality was poor at best and key places in the house had no alarms.

In 1998 when I moved in, I began rewiring the house due to very poor electrical layout. I decided to upgrade the alarms at the same time. I had a media circuit which I ran an alarm branch that began on the 2nd floor, then to the first floor and then to the basement floor. I wanted alarms that were AC, had a battery backup, and all of them interconnected together. BRK brand (at that time) was the only company that had smoke, co, combo smoke/co and heat alarms that would all work together. I installed the max that could be installed and interconnected on one zone: by code 12 smoke max, and 18 alarms max. I had most normal rooms with a smoke detector,...

United States on Aug 03, 2023

Localshopper: I was looking for a replacement smoke/CO detector since my old detector had to be replaced after 8 years (which I thought should be 10 years). The old detector started chirping because of low battery. However when I replaced the battery, it was still chirping, but this time it was 5 beeps every minute. Looking at the back of the detector I saw the manufacturing date of 2014 but I also noticed the warning that 5 beeps means it needs to be replaced.

The old detector is a First Alert combo with a 9v battery backup. The battery itself needs to be replaced every 6 months, which is really a hassle as well as it costs $8 for a pack of 2. Thus I wanted to find a new combo detector with a 10-year lithium battery. This is probably the best option since the battery lasts as long as the detector itself. The whole unit can be replaced every 10 years. This also saves a lot on the battery replacement itself. Plus the unit is just $10 more than the one with the 6-month battery backup.

Installation was very easy since this unit has the same size as the old one, so I just use the old bracket since it fits perfectly. Also the old wire connector plugged in perfectly into the slot in the...

United States on Mar 22, 2022



First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide Detector with 10 Year Sealed Battery Backup for Maximum Safety Kidde Carbon Monoxide Detector with Digital Display and Battery-Powered Operation Kidde Battery-Powered Carbon Monoxide Detector Alarm - Protect Your Home from Dangerous Gas
First Alert BRK SC9120LBL Hardwired Smoke and Carbon Monoxide Detector with 10 Year Sealed Battery Backup for Maximum Safety Kidde Carbon Monoxide Detector with Digital Display and Battery-Powered Operation Kidde Battery-Powered Carbon Monoxide Detector Alarm - Protect Your Home from Dangerous Gas
B2B Rating
80
97
96
Sale off $2 OFF $14 OFF
Total Reviews 49 reviews 3 reviews 1 reviews
Product Dimensions ‎2.25"D x 5.59"W x 5.69"H ‎4.5 x 1.5 x 2.75 inches ‎4.5 x 1.5 x 2.75 inches
ASIN B01F8POA7U B004Y6V5CI B004Y6V6K4
Warranty Description ‎7 ‎10 Year Limited ‎10-Year warranty Consult User Guide for more information.
Alarm ‎Audible ‎Audible ‎Fire safety, battery powered, tamper-resistant
Item model number ‎BRK SC9120LBL ‎KN-COPP-B-LPM ‎KN-COSM-BA
Pattern ‎Alarm ‎Detector
Batteries Required? ‎Yes ‎Yes ‎Yes
Sensor Type ‎Electrochemical ‎Electrochemical ‎Electrochemical
Included Components ‎Alarm, electrical power connector, mounting bracket, dust cover, manual ‎Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM ‎21025778 Carbon Monoxide Alarm Battery
Customer Reviews 4.6/5 stars of 1,308 ratings 4.7/5 stars of 17,079 ratings 4.7/5 stars of 28,785 ratings
Item Package Quantity ‎1 ‎1 ‎1
Is Discontinued By Manufacturer ‎No ‎No ‎No
Voltage ‎120 Volts ‎3 Volts ‎3 Volts
Battery Cell Type ‎Lithium Metal ‎Alkaline ‎Alkaline
Color ‎White ‎Detector ‎White
Best Sellers Rank #14,404 in Tools & Home Improvement #33 in Smoke & Carbon Monoxide Alarms #414 in Tools & Home Improvement #5 in Carbon Monoxide Detectors #107 in Tools & Home Improvement #2 in Carbon Monoxide Detectors
Item Weight ‎10.88 Ounces ‎0.16 ounces ‎8 ounces
Power Source ‎Battery Powered ‎Battery Powered ‎Battery Powered
Batteries Included? ‎Yes ‎Yes ‎Yes
Item Weight ‎10.88 Ounces ‎0.16 ounces ‎8 ounces
Manufacturer ‎First Alert ‎Kidde Safety ‎Kidde
Batteries ‎1 Lithium Metal batteries required. ‎3 AA batteries required. ‎2 AA batteries required.
Date First Available May 6, 2016 May 11, 2011 August 13, 2010
Part Number ‎SC9120LBL ‎21008873 ‎KN-COB-LP2 9CO5-LP2
Size ‎1 Pack ‎KN-COPP-B-LPM ‎1 Pack
Brand ‎FIRST ALERT ‎Kidde ‎Kidde
Style ‎Battery ‎Detector Alarm
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