---
product_id: 294743435
title: "CO605 Plug-In Battery Backup CO Alarm, 1 pack, White"
brand: "first alert"
price: "460.71 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "First Alert"
url: https://www.desertcart.tn/products/294743435-co605-plug-in-battery-backup-co-alarm-1-pack-white
store_origin: TN
region: Tunisia
---

# Plug-in design for effortless installation Battery backup for power outage safety Electrochemical sensor for precise CO detection CO605 Plug-In Battery Backup CO Alarm, 1 pack, White

**Brand:** first alert
**Price:** 460.71 DT
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay plugged in, stay protected — because safety shouldn’t take a break!

## Quick Answers

- **What is this?** CO605 Plug-In Battery Backup CO Alarm, 1 pack, White by first alert
- **How much does it cost?** 460.71 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/294743435-co605-plug-in-battery-backup-co-alarm-1-pack-white)

## 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

- • **Plug & Protect:** Instant setup with simple plug-in—no tools or mounting needed.
- • **Precision Detection:** Advanced electrochemical sensor ensures the most accurate CO alerts.
- • **Trusted Reliability:** UL certified with a 7-year limited warranty from First Alert, a brand you can count on.
- • **Uninterrupted Safety:** Battery backup keeps you protected even during power failures.
- • **User-Friendly Control:** One-button test and mute for hassle-free operation and peace of mind.

## Overview

The First Alert CO605 Plug-In Carbon Monoxide Alarm combines cutting-edge electrochemical sensor technology with a convenient plug-in design and battery backup, ensuring continuous, accurate CO detection even during power outages. With easy one-button testing and muting, UL certification, and a trusted 7-year warranty, it’s the smart, reliable choice for modern homes prioritizing safety and simplicity.

## Description

The First Alert CO606 plug in carbon monoxide alarm with battery backup uses an electrochemical carbon monoxide sensor the most accurate technology available. The alarm easily plugs into any standard outlet with no additional mounting. Battery backup ensures alarm Works even during power outages. Mute button silences any nuisance alarms. Single button also tests alarm functions. Carbon monoxide alarm utilizes electrochemical sensor for increased accuracy. 7 year limited. Co alarm meets UL standards. There are no complicated displays or settings to navigate.

Review: Carbon Minoxide Alert - Ended up getting this sooner than expected. It is so easy to ready and replace the old one. Very happy with it.
Review: Tested fine right out of the box. Comes with a battery. Good Brand Name. - The inclusion of a 9V battery right out of the box is a thoughtful touch. It gives me peace of mind knowing that the detector is ready to go, and the added battery backup ensures continuous protection even during power outages. I tested the detector when it arrived, and everything checked out. The ease of setup and the immediate functionality straight out of the box impressed me. The clear instructions provided made the installation process a breeze. As a consumer, the First Alert brand has always been synonymous with reliability and trust. This CO detector is no exception. It reinforces my confidence in the brand, and I appreciate the commitment to delivering high-quality products that prioritize safety... at a reasonable price. The white design seamlessly blends with my home decor, making it unobtrusive. The compact size ensures it doesn't take up much space. In summary, the First Alert CO605 Carbon Monoxide Detector is a stellar product that offers peace of mind, reliability, and ease of use. I highly recommend it to anyone in need of a top-notch carbon monoxide detector. Five stars – well deserved!

## Features

- Best Quality
- Original Branded Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000ND74XA |
| Alarm | Audible |
| Best Sellers Rank | #139,564 in Home Improvement ( See Top 100 in Home Improvement ) #427 in Home Security Alarms |
| Brand | First Alert |
| Built-In Media | Alarm, Battery |
| Colour | white |
| Country of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 18,870 Reviews |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00029054000682 |
| Item Dimensions D x W x H | 3.5D x 12.7W x 8.6H Centimeters |
| Item Type Name | CO Alarm |
| Item Weight | 4.2 Ounces |
| Manufacturer | FIRST ALERT |
| Mfr Part Number | FATCO605 |
| Model Number | CO606 |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Power Source | Battery Powered |
| Product Dimensions | 3.5D x 12.7W x 8.6H Centimeters |
| Product Style | Plug in Alarm with Battery Backup |
| Sensor Type | Electrochemical |
| Style | Plug in Alarm with Battery Backup |
| UPC | 029054000682 |
| Unit Count | 1.0 Count |
| Upper Temperature Range | 105 Degrees Fahrenheit |

## Product Details

- **Alarm:** Audible
- **Brand:** First Alert
- **Colour:** white
- **Item Weight:** 4.2 Ounces
- **Operating Humidity:** 10-95% RH
- **Power Source:** Battery Powered
- **Product Dimensions:** 3.5D x 12.7W x 8.6H Centimeters
- **Sensor Type:** Electrochemical
- **Style:** Plug in Alarm with Battery Backup
- **Upper Temperature Rating:** 105 Degrees Fahrenheit

## Images

![CO605 Plug-In Battery Backup CO Alarm, 1 pack, White - Image 1](https://m.media-amazon.com/images/I/51RBX7hitxL.jpg)

## Available Options

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

## Questions & Answers

**Q: why does mine chirp intertmittently**
A: If it is a 9 volt battery, it may not be seated correctly.  See the video on the first alert website, and be prepared to do some hard pushing to get the 9V battery to engage.  I had 3 9V units, and 2 of the 3 seemingly required excessive pressure to get the batteries to engage.  When I first thought I had the batteries installed by just closing the door, the unit chirped until I got the batteries shoved on hard.

**Q: Will the unit work without a bettery in it?**
A: I'm putting these units into rentals.  Will this work without a battery in it?  If the battery runs low, the tenants usually take the whole unit down rather than change the battery - rendering the whole concept useless.  This is the reason I would like to invest in "plug-in" units.  However, somewhere it said it will chirp if battery is missing.  Please clarify.  I need a unit that will be effective, even without a battery installed.

**Q: Does the monitor plug directly into the wall socket or is there an electric cord?**
A: No cord. The alarm plugs in directly to the outlet.

**Q: At what level of co does this alarm sound? Thank you for your time.**
A: The following info is verbatim from the instructions that came with the unit: Actuation of the Alarm indicates the presence of carbon monoxide which can kill you.  In other words, when our CO Alarm sounds, you must not ignore it! The following is not verbatim but a summary of regulatory requirements.  Levels of CO that cause an alarm: at 400 ppm of CO, it must alarm between 4 and 15 minutes; at 150 ppm of CO, it must alarm between 10 and 50 minutes; at 70 ppm of CO, it must alarm between 60 and 120 minutes.  The unit is designed not to alarm when expose to a constant level of 30 ppm for 30 days.  Hope this has answered your question....from housewife1.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Carbon Minoxide Alert
*by J***I on 3 August 2025*

Ended up getting this sooner than expected. It is so easy to ready and replace the old one. Very happy with it.

### ⭐⭐⭐⭐⭐ Tested fine right out of the box. Comes with a battery. Good Brand Name.
*by S***S on 24 January 2024*

The inclusion of a 9V battery right out of the box is a thoughtful touch. It gives me peace of mind knowing that the detector is ready to go, and the added battery backup ensures continuous protection even during power outages. I tested the detector when it arrived, and everything checked out. The ease of setup and the immediate functionality straight out of the box impressed me. The clear instructions provided made the installation process a breeze. As a consumer, the First Alert brand has always been synonymous with reliability and trust. This CO detector is no exception. It reinforces my confidence in the brand, and I appreciate the commitment to delivering high-quality products that prioritize safety... at a reasonable price. The white design seamlessly blends with my home decor, making it unobtrusive. The compact size ensures it doesn't take up much space. In summary, the First Alert CO605 Carbon Monoxide Detector is a stellar product that offers peace of mind, reliability, and ease of use. I highly recommend it to anyone in need of a top-notch carbon monoxide detector. Five stars – well deserved!

### ⭐⭐⭐⭐⭐ Necessary important easy task!
*by K***R on 24 May 2026*

My old units were 10 yrs old. Needed to be replaced and updated. This is not something to be ignored! Very easy to follow the directions for set up before plugging in. Takes a few minutes with indicator lights and beeps to keep you on track. Since I replaced them they've been trouble free. No problems.

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-09*