we’ve put together a collection of the best Carbon Monoxide Detectors that are currently available on the market. To help you find the perfect Carbon Monoxide Detector among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Carbon Monoxide Detectors

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Carbon Monoxide Detectors:

# Preview Product Price
1 Kidde Carbon Monoxide Detector, AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert Kidde Carbon Monoxide Detector, AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert $20.46 View Product
2 Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, CO Alarm Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, CO Alarm $15.97 View Product
3 First Alert CO400FF Battery Powered Carbon Monoxide Alarm, Pack of 1, White First Alert CO400FF Battery Powered Carbon Monoxide Alarm, Pack of 1, White $19.19 View Product
4 First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display $27.98 View Product
5 First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White $24.18 View Product
6 Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display $32.85 View Product
7 FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt… $16.99 View Product
8 Kidde Battery Operated Carbon Monoxide Alarm with Digital Display Kidde Battery Operated Carbon Monoxide Alarm with Digital Display $25.85 View Product
9 Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated , White - S3000BWES Google Nest Protect – Smoke Alarm – Smoke Detector and Carbon Monoxide Detector – Battery Operated ,… $119.00 View Product
10 X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, SC07-W, Pack of 6 X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display &… $229.99 View Product

Top Rated Carbon Monoxide Detector Reviews

Since we’ve mentioned 10 different models of Carbon Monoxide Detectors on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Carbon Monoxide Detectors below:

Sale1

Kidde Carbon Monoxide Detector, AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert
Kidde Carbon Monoxide Detector, AC-Plug-In with Battery Backup, CO Alarm with Replacement Alert

$20.46
View Product
Product Highlights:

  • CO detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home
  • Easy & quick installation – plugs directly into your home’s standard wall outlet, 85 decibel alarm alerts of fire
  • Protects during a power failure – 2-AA batteries, included with pack, provide backup service in the event of a power outage
  • Whole home family protection – place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases
  • UL Certified, 10-year limited warranty
Sale2

Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, CO Alarm
Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, CO Alarm

$15.97
View Product
Product Highlights:

  • CO detector with alert modes & LED lights that pulse for power, CO detection, & low battery
  • Sophisticated electronic components to protect you & your family from the dangers of carbon monoxide, 85 decibel alarm alerts of fire
  • Protects during a power failure – operates on 2-AA batteries, included with pack
  • Whole home family protection – place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases
  • UL Certified, 10-year limited warranty
Sale3

First Alert CO400FF Battery Powered Carbon Monoxide Alarm, Pack of 1, White
First Alert CO400FF Battery Powered Carbon Monoxide Alarm, Pack of 1, White

$19.19
View Product
Product Highlights:

  • Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO 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.The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it again. If the unit still does not alarm, replace it immediately
  • A loud 85 decibel alarm sounds when CO levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 5-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
  • 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)
Sale4

First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display
First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display

$27.98
View Product
Product Highlights:

  • Keep your family safe with this easy to use digital-display, 10-year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there’s a power failure
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured
  • Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector
  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • 10-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
  • 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)
Sale5

First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White

$24.18
View Product
Product Highlights:

  • 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 up to 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
  • 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)
Sale6

Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display
Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup, Digital Display

$32.85
View Product
Product Highlights:

  • Protects during a power failure – carbon monoxide alarm contains a 9V battery backup in case of plug-in failure
  • Easy installation – plug can be installed in any outlet of your home; or use the attached extension cord to place on a table or shelf
  • Peace of mind – when CO detection is normal, a red dot appears in the lower right corner & blinks; includes a test button
  • Electrochemical sensing technology – CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage
  • UL Certified, 10-year limited warranty
Sale7

FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features

$16.99
View Product
Product Highlights:

  • HIGHEST QUALITY, most accurate electrochemical co sensor technology
  • CONVENIENT, end of life chirping signal
  • HELPFUL, 2 silence features that silence both alarm and low-battery chirp
  • FEATURES, 9-Volt Battery and all necessary mounting hardware
  • Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
  • Electrochemical CO Sensor is the most accurate technology available
  • Two Silence Features Silence Low Battery Chirp For up to 8 Hours
  • End of Life Signal
  • Tamper Resistant Locking Pin Locks Alarm Cover to Prevent Removal of Battery
  • 9V Battery Included
8

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display

$25.85

View Product
Product Highlights:

  • CO detector with alert modes & 2 LED lights that pulse for power & CO detection
  • Electrochemical sensing technology – CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm
  • Protects during a power failure – CO detector operates on 3-AA batteries
  • Easy to read digital display – allows for easy viewing of carbon monoxide levels
  • UL Certified, 10-year limited warranty
9

Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated , White - S3000BWES
Google Nest Protect – Smoke Alarm – Smoke Detector and Carbon Monoxide Detector – Battery Operated , White – S3000BWES

$119.00
View Product
Product Highlights:

  • Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there’s smoke or CO in your home
  • Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is
  • Get phone alerts so you know something’s wrong even when you’re away from home[1]
  • CO detector looks out for carbon monoxide and tells you where it’s located
  • With App Silence you can silence the smoke alarm with your phone in the Nest app when there’s only a little smoke
  • No chirps to tell you the battery is low; Nest Protect tests its own batteries and gives you a Nightly Promise when you turn off the lights so you know everything is working
  • A Light in the Dark: Usually Nest Protect has its light turned off but when you walk underneath it Pathlight can light your way.
  • The Nest smoke and carbon monoxide alarm has sensors with a 10-year lifespan to help keep your family safe for up to a decade
  • With Safety Check you can test all your smoke and CO alarms with just a tap and get a full report once the test is done
  • Know from anywhere. Connect Nest Protect to Wi-Fi and it will send an alert to your phone if the alarm goes off or the batteries run low.
10

X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, SC07-W, Pack of 6
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, SC07-W, Pack of 6

$229.99
View Product
Product Highlights:

  • HEAR AN ALARM FROM ANYWHERE: If one alarm detects smoke or dangerous CO levels, all wireless interconnected units will activate, ensuring the earliest possible warning
  • WIDE COVERAGE FOR FULL HOME PROTECTION: Up to 24 X-Sense Link+ devices can be interconnected to create a wireless safety network for your entire house
  • 2-IN-1 PROTECTION: Equipped with both a photoelectric smoke sensor and an electrochemical CO sensor to provide reliable protection against both smoke and CO
  • BUILT-IN 10-YEAR BATTERY: Features a built-in 10-year lithium battery, so you’ll never need to worry about replacing batteries during the lifetime of the unit
  • INFORMATIVE LCD: Displays real-time CO levels from 30–999 ppm (parts per million) taken from the surrounding air, as well as battery level and working status

Video Overview

Top 5 Best Carbon Monoxide Detector Review in 2021

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Final Words

So, these are all of the Best Carbon Monoxide Detectors available on the market. We hope this collection was helpful to find the right Carbon Monoxide Detector for the money. However, we recommend checking out the features, benefits, and problems of each of these Carbon Monoxide Detectors before taking your decision.