---
product_id: 9001841
title: "BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White"
brand: "first alert"
price: "KSh24457"
currency: KES
in_stock: true
url: https://www.desertcart.co.ke/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery
store_origin: KE
region: Kenya
---

# Hardwired + battery backup for nonstop power 85dB siren for loud, unmistakable alerts Interconnects up to 18 devices for full-home coverage BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White

**Brand:** first alert
**Price:** KSh24457
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of danger with nonstop, connected protection!

## Quick Answers

- **What is this?** BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White by first alert
- **How much does it cost?** KSh24457 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/9001841-brk-sc9120ff-hardwired-smoke-and-carbon-monoxide-co-detector-battery)

## Best For

- first alert enthusiasts

## Why This Product

- Trusted first alert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy:** Backed by First Alert’s 10-year limited warranty and decades of home safety expertise
- • **Uninterrupted Safety:** Hardwired with 9V battery backup keeps you protected even during outages
- • **User-Friendly Design:** Single test/silence button and tamper-resistant locks for hassle-free peace of mind
- • **Dual Hazard Detection:** Smoke ionization + electrochemical CO sensing in one sleek unit
- • **Smart Interconnectivity:** Link up to 18 compatible alarms so your whole home sounds the alert simultaneously

## Overview

The FIRST ALERT BRK SC9120FF is a hardwired smoke and carbon monoxide detector featuring dual sensors for comprehensive hazard detection. It includes a 9V battery backup ensuring continuous monitoring during power failures, an 85dB alarm for clear warnings, and the ability to interconnect with up to 18 compatible devices for whole-home safety. Designed for easy installation and tamper resistance, it carries a 10-year limited warranty from a trusted industry leader.

## Description

FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White

## Features

- Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
- Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
- Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
- Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
- Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy
- Rigorously tested to meet UL standards
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
- First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | First Alert |
| Style | Standard Detection |
| Power Source | Battery Powered,Hardwired |
| Color | White |
| Product Dimensions | 1.9"D x 5.6"W x 5.6"H |
| Item Weight | 8 ounces |
| Alarm | Audible |
| Operating Humidity | 10-95% RH |
| Sensor Type | electrochemical,ionization |
| Global Trade Identification Number | 00029054015341 |
| Number of Items | 1 |
| Manufacturer | First Alert |
| UPC | 029054015341 |
| Part Number | SC9120B |
| Item model number | SC9120B |
| Batteries | 1 9V batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | 1-Pack |
| Pattern | SC9120FF |
| Item Package Quantity | 1 |
| Included Components | 1-Combination Smoke And Co Alarm, 10-Year Limited Warranty, 9-Volt Backup Battery, User's Manual. |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Warranty Description | 10 Year Limited |

## Product Details

- **Brand:** First Alert
- **Style:** Standard Detection
- **Power Source:** Battery Powered,Hardwired
- **Color:** White
- **Product Dimensions:** 1.9"D x 5.6"W x 5.6"H
- **Item Weight:** 8 ounces
- **Alarm:** Audible
- **Operating Humidity:** 10-95% RH
- **Sensor Type:** electrochemical,ionization
- **Global Trade Identification Number:** 00029054015341

## Images

![BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White - Image 1](https://m.media-amazon.com/images/I/61vLvq86+rL.jpg)

## Available Options

This product comes in different **Pattern Name, Size, Style** options.

## Questions & Answers

**Q: Why does this model contain the radioactive part? I am sure you are going to tell me that it is a trace amount and that it has all approvals...**
A: The "radioactive part" is how it works.  Don't like it?  Don't buy it.  Simple.

As for false alarms, this unit with its "radioactive part" is actually much more likely to give false alarms that condition people to ignore them.  It is also much less sensitive to the smoldering, smoke-producing fires that are more common in homes.  That's why ionization detectors are no longer recommended in residential settings.  Experts now recommend only photoelectric devices in homes, so if you have these, you should replace all of them with the SC7010B.

**Q: Because its a combo alarm where is the best place to install it since smoke rises and carbon monoxide doesn't?**
A: According to the National Fire Protection Association: Choose smoke alarms that have the label of a recognized testing laboratory.Install smoke alarms inside each bedroom, outside each sleeping area and on every level of the home, including the basement.On levels without bedrooms, install alarms in the living room (or den or family room) or near the stairway to the upper level, or in both locations.Smoke alarms installed in the basement should be installed on the ceiling at the bottom of the stairs leading to the next level.Smoke alarms should be installed at least 10 feet (3 meters) from a cooking appliance to minimize false alarms when cooking.Mount smoke alarms high on walls or ceilings (remember, smoke rises). Wall-mounted alarms should be installed not more than 12 inches away from the ceiling (to the top of the alarm). If you have ceilings that are pitched, install the alarm within 3 feet of the peak but not within the apex of the peak (four inches down from the peak).

**Q: If the alarm goes off, how can you tell whether it's due to CO or fire if there is no voice alert?**
A: I'm sure we'll all remember the number of beeps for each type of emergency, in an actual emergency, when we've been woken up in the middle of the night.
I'll pay the extra $10 per detector and get the voice alert.  I humbly suggest you do the same.

**Q: What is the manufacture date on these items?**
A: Your warranty starts at the date of purchase.  Keep your receipt.  Your 5 year shelf life starts the day you power it up.  The expiration date is hard coded into the software and only starts the day you plug it in..... This is from BRK WEBSITE

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-01-29*