---
product_id: 7590480
title: "First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White"
brand: "first alert"
price: "A$103"
currency: AUD
in_stock: true
category: "First Alert"
url: https://www.desertcart.com.au/products/7590480-first-alert-brk-carbon-monoxide-detector-hardwired-alarm-with-battery
store_origin: AU
region: Australia
---

# 120V hardwired power Interconnects up to 18 devices 9V battery backup First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White

**Brand:** first alert
**Price:** A$103
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of danger with smart, seamless CO protection!

## Quick Answers

- **What is this?** First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White by first alert
- **How much does it cost?** A$103 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/7590480-first-alert-brk-carbon-monoxide-detector-hardwired-alarm-with-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

- • **Smart Interconnect Technology:** Link up to 12 alarms and 6 compatible devices for whole-home coverage that alerts you instantly, wherever you are.
- • **Seamless Hardwired Integration:** 120V direct wiring ensures constant, reliable power without the hassle of frequent battery changes.
- • **Precision Electrochemical Sensor:** Advanced sensor technology accurately detects deadly carbon monoxide levels while minimizing false alarms.
- • **Uninterrupted Safety with Backup:** 9V battery backup keeps your home protected even during power outages—because peace of mind never sleeps.
- • **User-Friendly & Tamper-Resistant:** Quick plug-in installation, test/silence button, and secure mounting bracket lock combine convenience with safety.

## Overview

The First Alert BRK CO5120BN is a hardwired carbon monoxide detector featuring a 120V direct power connection with a 9V battery backup for uninterrupted safety. Equipped with an advanced electrochemical sensor and microprocessor control, it minimizes false alarms while accurately detecting CO levels. Its interconnect capability supports up to 18 devices, enabling comprehensive home coverage. Designed for easy installation and tamper resistance, this UL-listed alarm ensures reliable, professional-grade protection for your living space.

## Description

First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White - Household Alarms And Detectors - desertcart.com

## Features

- plastic
- Imported
- Plastic
- 120 volt hard wired carbon monoxide alarm wires directly into your home's electrical system
- Electrochemical sensor accurately detects carbon monoxide
- Microprocessor controlled to minimize false alarms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H2673K |
| Alarm | Audible |
| Batteries | 1 9V batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,353 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #83 in Carbon Monoxide Detectors |
| Brand | First Alert |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,413) |
| Date First Available | May 27, 2004 |
| Global Trade Identification Number | 00029054856173 |
| Included Components | FIRST ALERT BRK CO5120BN Hardwired Carbon Monoxide (CO) Detector with Battery Backup , White |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 8.8 ounces |
| Item model number | CO5120BN |
| Manufacturer | BRK Brands |
| Material | Plastic |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Part Number | GID-601054 |
| Pattern | Detector |
| Power Source | Battery Powered |
| Product Dimensions | 2.09"D x 5.53"W x 5.72"H |
| Sensor Type | Electrochemical |
| Size | 1 pack |
| Style | Safety |
| UPC | 029054856173 |
| Voltage | 120 Volts |
| Warranty Description | Warranty |

## Product Details

- **Alarm:** Audible
- **Brand:** First Alert
- **Color:** White
- **Global Trade Identification Number:** 00029054856173
- **Item Weight:** 0.55 Pounds
- **Operating Humidity:** 10-95% RH
- **Power Source:** Battery Powered
- **Product Dimensions:** 2.09"D x 5.53"W x 5.72"H
- **Sensor Type:** Electrochemical
- **Style:** Safety

## Images

![First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White - Image 1](https://m.media-amazon.com/images/I/61oVRUYntvL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.com.au/products/7590480-first-alert-brk-carbon-monoxide-detector-hardwired-alarm-with-battery](https://www.desertcart.com.au/products/7590480-first-alert-brk-carbon-monoxide-detector-hardwired-alarm-with-battery)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-01*