Finding a carbon monoxide alarms that suits your need and does its job well can be challenging. Overall, our tester reviews these carbon monoxide alarms with giving ratings and marks for its durability, ease of setup and use. Also the carbon monoxide alarms price will be fairly matched the product’s performance, plus with the attractive and sturdy design etc that comes with the product. We conducted hands-on testing for carbon monoxide alarms and have the details guide and list provided below.
This is the ultimate buyers guide carbon monoxide alarms.
A Quick Comparison of Our Favorites
1
First Alert Battery Carbon Monoxide Alarm | CO400
9.7
Amazon.com
2
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
9.5
Amazon.com
3
First Alert Plug in Carbon Monoxide Alarm | CO606, 9V Battery Backup, 3-Pack
9.1
Amazon.com
4
First Alert Plug in Carbon Monoxide Alarm | CO606, 9V Battery Backup
8.5
Amazon.com
5
SITERWELL Plug in Carbon Monoxide Detector 10 Year Battery&AC Powered, | CO Alarm Detectors with Electrochemical Sensor & Sound Warning,Portable CO Detector...
8.1
Amazon.com
6
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
8.1
Amazon.com
7
Kidde Carbon Monoxide Detector, AA Battery-Powered, COB | LED Status Lights, Loud 85 db Alarm, Lightweight and Portable for Travel or Home, 5th Edition
8
Amazon.com
8
Kidde Carbon Monoxide Detector, Plug-in & AA Battery Backup, COP | Rotating Plug with Power Surge Immunity, LED Status Lights, Loud 85 Db Alarm, Ideal for...
7.7
Amazon.com
9
First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Display | CO710
7.6
Amazon.com
10
Kidde Carbon Monoxide Detector, AA Battery-Powered, COBD | Digital Backlit Display, LED Status Lights, Loud 85 dB Alarm, Lightweight and Portable for Travel...
7.5
Amazon.com
The Best carbon monoxide alarms
First Alert Battery Carbon Monoxide Alarm | CO400
$21.99
in stock
Amazon.com
Features
| Part Number | CO400 |
| Model | CO400 |
| Warranty | 5 Year Limited Warranty |
| Color | White |
| Is Adult Product | |
| Release Date | 2007-05-02T00:00:01Z |
| Size | Pack of 1 |
| Language | English |
- The date shown on the product is the Manufacture Date, which identifies when the product was produced
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
$27.97
in stock
Amazon.com
Features
| Part Number | 21008873 |
| Model | KN-COPP-B-LPM |
| Warranty | 10 Year Limited |
| Color | Detector |
| Size | 1 Pack |
- 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.
First Alert Plug in Carbon Monoxide Alarm | CO606, 9V Battery Backup, 3-Pack
$71.97
in stock
Amazon.com
Features
| Part Number | CO605 |
| Model | CO606 |
| Warranty | 7 Year Limited |
| Color | White |
| Size | 3-Pack |
- Keep your family safe from carbon monoxide in multiple rooms with this convenient plug in carbon monoxide alarm 3 pack; The alarms work with any standard outlet and also have a battery backup for 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
- Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
- To ensure complete protection make sure to place 1 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
First Alert Plug in Carbon Monoxide Alarm | CO606, 9V Battery Backup
$23.99
in stock
Amazon.com
Features
| Part Number | FATCO605 |
| Model | CO606 |
| Warranty | 7-Year Limited Warranty |
| Color | White |
| Is Adult Product | |
| Release Date | 2007-05-02T00:00:01Z |
| Size | 1-Pack |
- 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
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
$49.99
in stock
Amazon.com
Features
| Part Number | KN-COB-DP2 |
| Model | KN-COB-DP2 |
| Color | White |
| Release Date | 2025-05-16T00:00:01Z |
| Size | 1 Pack |
- 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
SITERWELL Plug in Carbon Monoxide Detector 10 Year Battery&AC Powered, | CO Alarm Detectors with Electrochemical Sensor & Sound Warning,Portable CO Detector...
$51.99
$60.67
in stock
Limited time deal
Amazon.com
Features
| Part Number | A4602A-7 |
| Model | A4602A-7 |
| Color | White |
| Size | 2 Pack |
- Carbon Monoxide Detectors
- 10 YEARS BATTERY: This CO alarm detector equipped with 10-year battery, the backup batteries ensure that the carbon monoxide detector remains operational even during power outages or when the main power source fails.
- BREATHING LIGHT: Gentle light desian and one-touch silence function ensure your sleep won't be disturbed. If the carbon-monoxide detector is in normal working condition, Green=Normal Operation, Yellow=Fault, Red =Alarm.
- CO DETECTOR: The carbon-monoxide detector detects dangerous Carbon Monoxide (CO) Gas from common sources like gas or wood-burning fireplaces, gas appliances, boilers, heaters, clogged chimneys, running vehicles, and more.
- PORTABILITY: The travel carbon monoxide detector is compact and easy to carry, product size: 4.72*2.76*1.65inch. It can be easily put into a suitcase, backpack or handbag to carry around.
- Our professional technical support team offers pre-sales consultation and after-sales assistance for product selection, setup, troubleshooting and all product inquiries, with round-the-clock support available.
Kidde Carbon Monoxide Detector, AA Battery-Powered, COB | LED Status Lights, Loud 85 db Alarm, Lightweight and Portable for Travel or Home, 5th Edition
$24.97
in stock
Amazon.com
Features
| Part Number | COB |
| Model | COB |
| Warranty | 10-Year Limited Warranty |
| Color | White |
| Size | 1 Pack |
- DETECTS CARBON MONOXIDE: Model COB monitors CO and sounds a loud 85 dB alarm to signal evacuation to fresh air; LED warning light indicates hazard; Test/Hush button allows quick checks or temporary silencing
- AA BATTERY POWERED: This CO detector is battery-powered, installs without wiring, mount it on the wall or set it on a table, and operates during outages using two included AA batteries
- TRAVEL-READY DESIGN*: Compact carbon monoxide detector is suitable for use at home or for travel; lightweight design allows you to take it on the go to use in hotels or vacation rentals when detection is needed away from home
- TESTED & TRUSTED: This carbon monoxide alarm is rigorously tested to meet UL 2034 5th Edition standards, and is ETL Listed; includes a 10-year limited warranty on alarm
- BUILT FOR EVERY HOUSEHOLD: Designed to help provide dependable carbon monoxide monitoring for everyday residential use; supports renters, homeowners, and pet owners seeking added awareness and protection from CO hazards in the home
Kidde Carbon Monoxide Detector, Plug-in & AA Battery Backup, COP | Rotating Plug with Power Surge Immunity, LED Status Lights, Loud 85 Db Alarm, Ideal for...
$34.97
in stock
Amazon.com
Features
| Model | COP |
| Warranty | 10-Year Limited Warranty |
| Color | White |
| Size | 1 Pack |
- DETECTS CARBON MONOXIDE: Model COP monitors CO levels & sounds a loud 85 dB alarm to signal evacuation; sleep peacefully with no nighttime chirps; LED warning light indicates hazard; Test/Hush button for quick checks
- PLUG-IN POWER WITH BATTERY BACKUP: CO detector plug-in operates on 120V AC with 2 AA backup batteries (included) for detection during outages; rotating plug fits vertical or horizontal outlets; includes power surge immunity to help maintain performance
- TRAVEL-READY DESIGN*: Compact carbon monoxide detector is suitable for use at home or for travel; lightweight design allows you to take it on the go to use in hotels or vacation rentals when detection is needed away from home
- TESTED & TRUSTED: This carbon monoxide alarm is rigorously tested to meet UL 2034 5th Edition standards, and is ETL Listed; includes a 10-year limited warranty on alarm
- BUILT FOR EVERY HOUSEHOLD: Designed to help provide dependable carbon monoxide monitoring for everyday residential use; supports renters, homeowners, and pet owners seeking added awareness and protection from CO hazards in the home
First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Display | CO710
$44.00
in stock
Amazon.com
Features
| Part Number | CO710 |
| Model | CO710 |
| Warranty | 10-Year Limited Warranty |
| Color | White |
| Is Adult Product | |
| Size | Pack of 1 |
- CO detector alerts you to elevated carbon monoxide levels
- Easy-to-read backlit digital LED display shows temperature and CO concentration
- Built-in 10-year battery offers continuous protection for the life of the carbon monoxide detector
- Stylish design intended to sit atop a dresser or table
- Loud 85-decibel alarm sounds when CO levels are unsafe
- The date shown on the product is the Manufacture Date, which identifies when the product was produced
Kidde Carbon Monoxide Detector, AA Battery-Powered, COBD | Digital Backlit Display, LED Status Lights, Loud 85 dB Alarm, Lightweight and Portable for Travel...
$30.47
$31.97
in stock
Amazon.com
Features
| Part Number | COBD |
| Model | COBD |
| Warranty | 10-Year Limited Warranty |
| Color | White |
| Size | 1 Pack |
- DETECTS CARBON MONOXIDE: Model COBD sounds a loud 85-decibel alarm when carbon monoxide is detected; easy-to-read backlit digital display shows status and alarm operation; a test/hush button enables quick checks or silencing alerts; replaces model 900-0146LP
- AA BATTERY POWERED: Carbon monoxide detector installs without wiring, mount it on the wall or set it on a table, and operates during outages using two included AA batteries; mounting hardware included
- TRAVEL-READY DESIGN*: Compact CO detector is suitable for use at home or for travel; lightweight design allows you to take it on the go to use in hotels or vacation rentals when detection is needed away from home
- TESTED & TRUSTED: This carbon monoxide alarm is rigorously tested to meet UL 2034, 5th Edition standards, and is ETL Listed; includes a 10-year limited warranty on alarm
- BUILT FOR EVERY HOUSEHOLD: Designed to help provide dependable carbon monoxide monitoring for everyday residential use; supports renters, homeowners, and pet owners seeking added awareness and detection from CO hazards in the home
The Video Review of Best carbon monoxide alarms
The Verdict
Our best overall carbon monoxide alarms, the Perception and the reviews helps assist to choose you the product better. We hope our reviews buyer guide of these carbon monoxide alarms will help you pick the perfect carbon monoxide alarms for you and your buying decision making.