---
product_id: 2248752
title: "Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack"
brand: "first alert"
price: "NT$1835"
currency: TWD
in_stock: true
reviews_count: 13
category: "First Alert"
url: https://www.desertcart.tw/products/2248752-carbon-monoxide-detector-plug-in-alarm-with-battery-backup-co606
store_origin: TW
region: Taiwan
---

# Compact 3.4x5x1.38 inch design Loud 85dB alarm for urgent alerts Battery backup for power outage safety Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack

**Brand:** first alert
**Price:** NT$1835
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay plugged in, stay protected — safety that never sleeps!

## Quick Answers

- **What is this?** Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack by first alert
- **How much does it cost?** NT$1835 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/2248752-carbon-monoxide-detector-plug-in-alarm-with-battery-backup-co606)

## 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 Silence:** One-button test and mute feature to silence nuisance alarms effortlessly
- • **Plug & Protect:** Instant setup with any standard outlet—no tools, no hassle
- • **Trusted Longevity:** 7-year limited warranty with end-of-life signal for timely replacement
- • **Precision Detection:** Advanced electrochemical sensor ensures accurate CO level monitoring
- • **Uninterrupted Safety:** Battery backup keeps you protected even during power failures

## Overview

The First Alert CO606 is a plug-in carbon monoxide detector featuring an advanced electrochemical sensor for precise CO detection. It includes a battery backup to maintain continuous monitoring during power outages and emits a loud 85-decibel alarm when dangerous CO levels are detected. Designed for easy installation with a single test/silence button, it offers a 7-year limited warranty and end-of-life signal to ensure long-term home safety.

## 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: 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!
Review: Good safe item - Working fine

## Features

- Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
- Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
- Simple to use, with a single test/silence button; a loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. Low battery signal mute, quiets low battery signal for upto 8 hours
- To ensure complete protection make sure to place one on each level of your home and in each bedroom
- 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
- All first alert CO alarms are rigorously tested to meet UL standards. Item length is 3.4 inches , item width is 1.38 inches and item height is 5 inches
- Loud 85-decibel alarm sounds when CO levels are elevated

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000ND74XA |
| Alarm | Carbon Monoxide |
| Batteries | 1 9V batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #808 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Carbon Monoxide Detectors |
| Brand | First Alert |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (22,671) |
| Date First Available | March 17, 2006 |
| Global Trade Identification Number | 00029054000682 |
| Included Components | Alarm, Battery |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4.2 ounces |
| Item model number | CO606 |
| Manufacturer | First Alert |
| Material | Plastic |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Part Number | FATCO605 |
| Pattern | Alarm |
| Power Source | Corded Electric |
| Product Dimensions | 1.38"D x 5"W x 3.4"H |
| Sensor Type | Electrochemical |
| Size | 1-Pack |
| Style | Plug in Alarm with Battery Backup |
| UPC | 029054000682 |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
| Voltage | 120 Volts |
| Warranty Description | 7 Years Limited |

## Product Details

- **Alarm:** Carbon Monoxide
- **Brand:** First Alert
- **Color:** White
- **Item Weight:** 4.2 Ounces
- **Operating Humidity:** 10-95% RH
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.38"D x 5"W x 3.4"H
- **Sensor Type:** Electrochemical
- **Style:** Plug in Alarm with Battery Backup
- **Upper Temperature Rating:** 105 Degrees Fahrenheit

## Images

![Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack - Image 1](https://m.media-amazon.com/images/I/51RBX7hitxL.jpg)

## Available Options

This product comes in different **Pattern, Size** 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

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

### ⭐⭐⭐⭐⭐ Good safe item
*by M***E on February 25, 2026*

Working fine

### ⭐⭐⭐⭐⭐ Perfect and Easy to Use!
*by J***R on October 22, 2025*

This First Alert Carbon Monoxide Detector was exactly what I needed — simple, reliable, and easy to set up. You just plug it in, and it’s ready to go. I love that it also has a battery backup for extra peace of mind. A great choice for quick, worry-free protection!

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-13*