---
product_id: 29933380
title: "BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup"
brand: "first alert"
price: "745 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/29933380-brk-sc9120lbl-hardwire-ac-smoke-and-carbon-monoxide-combination-alarm
store_origin: PL
region: Poland
---

# Electrochemical Sensor 10Yr Battery Backup Latching Alarm Indicator BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup

**Brand:** first alert
**Price:** 745 zł
**Availability:** ✅ In Stock

## Summary

> 🔒 Safety Meets Style: Your Home's Silent Guardian!

## Quick Answers

- **What is this?** BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup by first alert
- **How much does it cost?** 745 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/29933380-brk-sc9120lbl-hardwire-ac-smoke-and-carbon-monoxide-combination-alarm)

## 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

- • **Memory That Matters:** The latching alarm indicator remembers which unit triggered the alarm, making it easier to identify potential issues.
- • **Nuisance-Free Alerts:** Intelligent Sensing technology minimizes false alarms, allowing you to focus on what truly matters.
- • **Precision at Its Best:** Utilize the most accurate electrochemical carbon monoxide sensor available, designed to keep your home safe from hidden dangers.
- • **Stay Safe, Stay Smart:** Experience peace of mind with a 10-year lithium battery backup that ensures your safety is never compromised.
- • **Sleek & Compact Design:** With dimensions of just 5.69 x 2.25 x 5.59 inches, this alarm fits seamlessly into any home decor.

## Overview

The FIRST ALERT BRK SC9120LBL is a hardwired AC smoke and carbon monoxide combination alarm featuring a 10-year sealed battery backup, an advanced electrochemical sensor for accurate detection, and intelligent sensing technology to reduce false alarms. Its compact design and latching alarm indicator make it a must-have for modern safety.

## Description

BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup

## Features

- 10Yr Lithium battery backup
- Locked battery drawer
- Electrochemical carbon Monoxide sensor - the most accurate sensor available as compared to other Sensing technologies
- Latching alarm indicator - remembers which unit initiated an alarm
- Intelligent Sensing technology helps reduce the Number of nuisance alarms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | FIRST ALERT |
| Power Source | Battery Powered |
| Item Weight | 10.08 ounces |
| Sensor Type | Ionization, Electrochemical |
| Number of Items | 1 |
| Manufacturer | PROOK |
| UPC | 029054015372 |
| Part Number | SC9120LBL |
| Item Weight | 10.1 ounces |
| Product Dimensions | 5.69 x 2.25 x 5.59 inches |
| Item model number | SC9120LBL |
| Batteries | 1 Lithium Metal batteries required. |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Measurement System | Metric |
| Included Components | 1 First Alert Safety Product |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** FIRST ALERT
- **Power Source:** Battery Powered
- **Item Weight:** 10.08 ounces
- **Sensor Type:** Ionization, Electrochemical
- **Number of Items:** 1
- **Manufacturer:** PROOK
- **UPC:** 029054015372

## Images

![BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup - Image 1](https://m.media-amazon.com/images/I/61S-xNJcfIL.jpg)
![BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup - Image 2](https://m.media-amazon.com/images/I/61S-xNJcfIL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Frequently Bought Together

- First Alert BRK SC9120LBL Hardwire AC Smoke and Carbon Monoxide Combination Alarm with 10 Year Sealed Battery Backup
- First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup, 1-Pack
- First Alert SMI110, 10-Year Sealed Battery Smoke Alarm, 1-Pack

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**Shop now:** [https://www.desertcart.pl/products/29933380-brk-sc9120lbl-hardwire-ac-smoke-and-carbon-monoxide-combination-alarm](https://www.desertcart.pl/products/29933380-brk-sc9120lbl-hardwire-ac-smoke-and-carbon-monoxide-combination-alarm)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-01*