The Best Carbon Monoxide Detectors

Looking for the best Carbon Monoxide Detectors?

Discover now our comparison of the best Carbon Monoxide Detectors. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Carbon Monoxide Detectors are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Carbon Monoxide Detectors in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

SaleNo. 1

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

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

SaleNo. 2

Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

Easy Installation - simply plug-in to a standard, 120V outlet in your home
2-AA battery backup provides protection during a power outage
85-decibel alarm announces when carbon monoxide is detected
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
Test-Hush Button makes testing the detector or silencing false alarms easy
End of life chirp notifies you when the alarm needs to be replaced
UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

SaleNo. 3

Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

Electrochemical sensor technology detects CO gas
Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
Event Memory records the last time carbon monoxide was detected or when the unit was last tested

No. 4

First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

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 , Battery Replaceable - Yes
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)

No. 5

Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

Electrochemical sensor technology detects CO gas
Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
Green LED indicates power to the smoke detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

No. 6

2 Pack Carbon Monoxide Detectors,CO Detectors Battery Powered,Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office

High Sensitivity and Rapid Response: Equipped with an advanced Carbon Monoxide Detector Chip and electrochemical sensor, our CO Gas Monitor Alarm quickly detects odorless, invisible, and deadly carbon monoxide in the air.Respond quickly to protect your life.
Easy Installation: Our YTBASE carbon monoxide detector provides continuous monitoring of CO levels, ensuring the safety of your family. No need for wiring, just insert 2 AA batteries (not included) and it's ready to detect, even during power failures.
Multiple Alarm Standards: Be alerted at different levels of carbon monoxide concentration. 50ppm sounds an alarm within 60 to 90 minutes, 100ppm sounds an alarm within 10 to 40 minutes, and 300ppm sounds an alarm within 3 minutes. Stay informed and take prompt action.
Simple to Use: Featuring a single test/reset button, our CO detector is user-friendly. When dangerous CO levels are detected, the red light flashes and a loud 85-decibel alarm sounds, ensuring the safety of your loved ones and property.
Wide Application: Suitable for various environments where carbon monoxide may be present, such as your home kitchen, bedroom, bathroom, hotel, or during outdoor activities like barbecuing or in parking garages. Stay protected wherever you are.

SaleNo. 7

KH Alert Carbon Monoxide Detectors, Carbon Monoxide Detector Plug in with Temperature Humidity Sensor Built-in, CO Level Monitor Alarm with Clear LCD Display Sound & Light Warning for Home/Hotel/RV

New Upgrades - This Carbon Monoxide detector Equipped with 3 major air indicators of Carbon Monoxide(0 to 999PPM), Temperature(1 to 176 ℉), and Humidity(0% to 95%RH) to protect your family.
Easy to Use - Plug and play, saving installation time.
Accuracy & Durability - This Carbon Monoxide Alarm use Imported Electrochemical Sensor, high reliability, more responsive, when the CO gas concentration reaches the alarm level(>150ppm), the Voice and Light alarm will work.
Compact Design & Clear LCD Display - Portable CO Gas Detector Meter is small and light, can be carry to anywhere easily, Big color LCD display, The high-definition screen makes it easy to read even at night.
Widely Used - CO Detector are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.
Worry-Free After Service - We are willing to provide you with unconditional returns or exchanges within 180 days. If you have any questions, please contact us by email, we will try our best to help you solve the problem.

No. 8

Carbon Monoxide Detector, Replaceable Battery-Operated Carbon Monoxide Alarm Detectors with Digital Display & LED Lights. CO Alarm Applicable to Home, Warehouse

The carbon monoxide detector alarm continuous monitoring of Carbon Monoxide levels to keep your family safe. Operated by 3 * 1.5V AA batteries (not included),portable and easy installation,no need for socket, not affected by power failure, can be installed anywhere!
Fast and Accurate Detection：The carbon monoxide detector is built-in advanced electrochemical CO sensor that provides precision alarms for fast and accurate detection of carbon monoxide levels. When the carbon monoxide concentration exceeds the specified value, an alarm warning of more than 85 decibels will be issued. To ensure complete protection, be sure to place one on every floor of your home and in every bedroom.
LCD Digital Display and LED Indicators：Simple to use,with a single test/reset button,when a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound--Loud 85 decibel alarm with LED Flash.
Portable and Easy to Install：The carbon monoxide detector is easy to install without rewiring. It can be mounted on wall or ceiling（Please refer to the instruction manual for the specific location of the carbon monoxide sensor installation）, This CO detector includes mounting screws and anchors,. It is an ideal carbon monoxide quotation device for home use
Alarm standard: 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test the detector, please do not use gas blow the hole directly.
Package Includes： 1×carbon monoxide detector,1×manual, 2 screws, 2 anchor plugs.If you meet any issues with Carbon Monoxide Detector, just contact us via or Amazon question message, We will consistently spare no effort to provide good service and experience for every customers!
Carbon monoxide alarm installed battery status(not included battery): When the carbon monoxide detector is installed with a battery, the product will emit a "beep" alarm sound and then enter the standby state. During the standby process, the green light will flash once every 30 seconds, which means the product is normal Work

No. 9

X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R

Flexible Installation: Wall-mounted or freestanding; easy to take while traveling
High Accuracy & Reliability: Advanced Figaro electrochemical CO sensor; 5-year replaceable battery
Instant Alert: An early warning will be delivered through a loud 85-decibel alarm
Intuitive LED: 3-colored LED indicator flashes red, green, or yellow to indicate an alarm, power, or a fault
Informative LCD: Shows CO levels and records the highest detected since the last reset; if CO reaches a dangerous level, the alarm will sound to warn you; for precise real-time monitoring, consider using a CO meter (this model is a CO detector)

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Last update on 2025-04-15 / Affiliate links / Images from Amazon Product Advertising API

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