- About The Store
- Home Safety FAQs
-
Customer Service
Pre-Order Questions
Shipping Policy
Order Status
- View Cart
Regular: $79.95 |
|
||
Price: $46.95 | |||
You Save: $33.00 (41% Off) |
The First Alert BRK SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm uses an electrochemical CO sensing technology and Ionization sensor for smoke detection. It includes a 9-volt battery for continued function in the event of a power outage, and it features a test/silence button, tamper-resistant locking brackets, and a universal mounting bracket. This CO smoke detector can be connected to other compatible BRK and First Alert hardwired smoke and carbon monoxide detectors. Its latching alarm indicator automatically identifies which unit initiated the alarm–even after the conditions that set off the alarm have subsided.
Detects Smoke and Carbon Monoxide
Designed to meet the latest construction requirements, the First Alert Combination Smoke and Carbon Monoxide Alarm detects two threats, smoke and carbon monoxide. Lights on the face of the alarm tell you what the threat is, and false alarms can be silenced with a single button.
Connect to Other Alarms for Greater Coverage
This hardwired combination smoke and carbon monoxide detector can be connected to other compatible BRK or First Alert CO smoke detectors within a single-family residence. Once one alarm is triggered, all connected CO smoke alarms will sound. The latching alarm indicator on the CO smoke alarm automatically identifies which unit initiated the alarm–even after the conditions that set off the alarm have subsided.
Easy to Install and Maintain
The First Alert Combination Smoke and Carbon Monoxide Alarm integrates with existing wiring and features a universal mounting bracket that makes installing the unit quick and easy. The side-load battery compartment makes changing the 9-volt battery simple. Tamper-resistant locking pins prevent unauthorized disabling of the CO smoke alarm.
First Alert Hardwired Smoke/Monoxide Alarm SC9120B
Average score based on 279 reviews
Post Product Review
Reviewed: 11/29/2019 by gary silberman
I have purchased this product on numerous occasions from First Alert, and I always received the product in a timely and professional manner. I would highly recommend First Alert.
Easy install, works great
Reviewed: 11/25/2019 by Jordan Wild
Easy install, works great
Reviewed: 11/12/2019 by David Sparrow
The item arrived in good shape and was easy to install. Good work
New Order
Reviewed: 10/28/2019 by Diann Mikkelson
Replaced a discontinued Carbon Monoxide Alarm with the SC9120B. Works great.
Reviewed: 10/26/2019 by Cynthia Sloan
Practical
Reviewed: 10/14/2019 by Brian Crnkovic
Easy installation, where a replacement existing unit one year old had to replace defected
Replace old ones from 2000
Reviewed: 09/23/2019 by Howard Birkel
They ware working and did not have to change any of the wires plugin and work from the point on.!!!!! The ones that i had to replace had a date of SEPT 27/ 2000 Thank you First Alert for the help.!!!!!!
Simple upgrade installation
Reviewed: 09/19/2019 by Rocco Termini
Updating some alarms in our complex from the 9120 smoke detector to this smoke and CO detector could not be any easier. Same pigtail connector and just have to change the mount ....Thanks for keeping something in this world the same.
Completely Satisfied
Reviewed: 07/10/2019 by gary silberman
I have purchased this product at least 20 times, and I am completely satisfied with the products and efficient shipping. I would highly recommend this product and the company
Reviewed: 05/08/2019 by Romel patell
Received on time and good quality.
Home Owner In Montana
Reviewed: 04/12/2019 by Deniece Baldwin
For our home's security of Smoke and Carbon Monoxide we use First Alert. Our home is over 8 yrs old now, and this product and the company has stood by it's products. It's been easy to re-order, and when we had one of the detectors malfunction while under warranty. First Alert sent out a new one right away. We truly feel safe with this product.
SC9120B
Reviewed: 03/14/2019 by Wayne York
Arrived quickly. Perfect replacement.
Reviewed: 03/05/2019 by Justin Sabelman
Fast to ship! Good Product!
Sc9120b
Reviewed: 02/21/2019 by Joseph Albanese
Very good product
Reviewed: 02/02/2019 by Patr
Quick delivery, easy to install.
Other reasons include: It could be a different device or appliance such as a security system, monitor, carbon monoxide alarm, or other device which has a similar low battery or alert signal. Some of the same factors that cause unwanted alarms can cause intermittent alarms: dust and insects in the alarm or power interruptions in hardwired alarms. Improper wiring on AC or AC/DC smoke alarms. AC alarms will chirp every 5 seconds if the interconnect wire is grounded. The orange interconnect wire should NEVER be grounded; it should only be used to interconnect other smoke alarms or compatible devices.
We make it as easy as possible to ensure you get the lowest prices available:
|