Best Carbon Monoxide Detector of 2025

Last updated on 08/10/2025
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1
Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,Black,1 Pack
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Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,Black,1 Pack
XINDUM
39% OffFree Shipping
Why we love it
  • Ensures accuracy with reliable sensor.
  • Alarms loudly for safety.
  • Convenient battery life longevity.
Main Highlights
  • Accurate Relialbel CO Detector: Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high accuracy and reliable electrochemical sensor, continuously measure CO concentration in ambient air.
  • Loud Alarm Warning: Carbon Monoxide can't be found with human natural senses. You can see real-time CO levels on LCD display. When a dangerous level of carbon monoxide is detected, the red LED will flash and the 85dB audible alarm will alert your families.
  • 10 Year Battery Operated: The CO Alarm is equipped with 1600mAh Lithium battery (Sealed In). No wiring and sockets required. It can be placed anywhere you want.
  • Easy Intsalltion: The CO alarm can stand freely on the desk, also can be wall mounted with double side tape without drill, or drill to install with screw kits. With the bracket, the CO detector also can be taken down even wall mounted.
  • Low Battery & End of Life Warning: If the battery is low , the CO alarm beeps once every 60 seconds, and the yellow LED indicator flashes once. If the CO detector reaches the end of service life,the carbon monoxide beeps twice every 30 seconds, and Yellow LED indicator flashes twice.
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9.9
Exceptional
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9.9
Exceptional
XINDUM
Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,Black,1 Pack
39% OffFree Shipping
Why we love it
  • Ensures accuracy with reliable sensor.
  • Alarms loudly for safety.
  • Convenient battery life longevity.
Main Highlights
  • Accurate Relialbel CO Detector: Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high accuracy and reliable electrochemical sensor, continuously measure CO concentration in ambient air.
  • Loud Alarm Warning: Carbon Monoxide can't be found with human natural senses. You can see real-time CO levels on LCD display. When a dangerous level of carbon monoxide is detected, the red LED will flash and the 85dB audible alarm will alert your families.
  • 10 Year Battery Operated: The CO Alarm is equipped with 1600mAh Lithium battery (Sealed In). No wiring and sockets required. It can be placed anywhere you want.
  • Easy Intsalltion: The CO alarm can stand freely on the desk, also can be wall mounted with double side tape without drill, or drill to install with screw kits. With the bracket, the CO detector also can be taken down even wall mounted.
  • Low Battery & End of Life Warning: If the battery is low , the CO alarm beeps once every 60 seconds, and the yellow LED indicator flashes once. If the CO detector reaches the end of service life,the carbon monoxide beeps twice every 30 seconds, and Yellow LED indicator flashes twice.
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Value for Money
2
KARUOTOP Carbon Monoxide Detector, 10-Year Sealed Battery CO Alarm with Digital LCD Display, Portable Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
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KARUOTOP Carbon Monoxide Detector, 10-Year Sealed Battery CO Alarm with Digital LCD Display, Portable Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
KARUOTOP
30% OffFree Shipping
Why we love it
  • Accurate CO detection for safety.
  • Long-lasting battery, hassle-free use.
  • Clear readings for peace of mind.
Main Highlights
  • Reliability & Precision: Certified by UKCA and compliant with EN 50291, this CO alarm precisely measures carbon monoxide levels. When a hazard is detected, it immediately triggers a loud 85 dB alarm to alert your family.
  • 10-Year Sealed Lithium Battery: Equipped with a maintenance-free battery that delivers 10 years of continuous power, eliminating frequent replacements. Can be temporarily turned off to conserve battery life when not in use.
  • Real-Time LCD Display: The large backlit LCD screen continuously shows real-time CO levels—even when they are at zero. Its clear visibility in both daylight and low light ensures 24/7 monitoring at a glance.
  • Intuitive LED Indicators: Three LED indicators provide clear status updates: green flashes every 60 seconds for normal operation, red signals an alarm, and yellow indicates a malfunction—so you always know the detector’s condition.
  • Flexible Installation: Designed for both wall mounting and free-standing use. Perfect for your home, RV, or while traveling, this compact CO alarm offers reliable protection wherever you go.
Show More
9.8
Exceptional
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9.8
Exceptional
KARUOTOP
KARUOTOP Carbon Monoxide Detector, 10-Year Sealed Battery CO Alarm with Digital LCD Display, Portable Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
30% OffFree Shipping
Why we love it
  • Accurate CO detection for safety.
  • Long-lasting battery, hassle-free use.
  • Clear readings for peace of mind.
Main Highlights
  • Reliability & Precision: Certified by UKCA and compliant with EN 50291, this CO alarm precisely measures carbon monoxide levels. When a hazard is detected, it immediately triggers a loud 85 dB alarm to alert your family.
  • 10-Year Sealed Lithium Battery: Equipped with a maintenance-free battery that delivers 10 years of continuous power, eliminating frequent replacements. Can be temporarily turned off to conserve battery life when not in use.
  • Real-Time LCD Display: The large backlit LCD screen continuously shows real-time CO levels—even when they are at zero. Its clear visibility in both daylight and low light ensures 24/7 monitoring at a glance.
  • Intuitive LED Indicators: Three LED indicators provide clear status updates: green flashes every 60 seconds for normal operation, red signals an alarm, and yellow indicates a malfunction—so you always know the detector’s condition.
  • Flexible Installation: Designed for both wall mounting and free-standing use. Perfect for your home, RV, or while traveling, this compact CO alarm offers reliable protection wherever you go.
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3
2 Pack Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries
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2 Pack Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries
Kidde
15% OffFree Shipping
Why we love it
  • Loud and clear alarm.
  • LED status indicator lights.
  • Easy setup included.
Main Highlights
  • 10-year Carbon Monoxide sensor accurately detects from 50 ppm of CO gas in the air and emits a loud, clear alarm to alert residents
  • LED lights indicate the current status of the carbon monoxide alarm & a low battery warning sounds when they need replacing
  • Includes 2 x AA alkaline batteries and wall fixing kit is included for easy setup
  • Sleek & compact - Dimensions (HxWxD): 61 x 96 x 38mm
  • 3 years manufacturer’s warranty | CE marked, TUV Certified to EN 50291-1:2018 & UKCA tested and certified
Show More
9.8
Exceptional
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9.8
Exceptional
Kidde
2 Pack Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries
15% OffFree Shipping
Why we love it
  • Loud and clear alarm.
  • LED status indicator lights.
  • Easy setup included.
Main Highlights
  • 10-year Carbon Monoxide sensor accurately detects from 50 ppm of CO gas in the air and emits a loud, clear alarm to alert residents
  • LED lights indicate the current status of the carbon monoxide alarm & a low battery warning sounds when they need replacing
  • Includes 2 x AA alkaline batteries and wall fixing kit is included for easy setup
  • Sleek & compact - Dimensions (HxWxD): 61 x 96 x 38mm
  • 3 years manufacturer’s warranty | CE marked, TUV Certified to EN 50291-1:2018 & UKCA tested and certified
Show More
4
FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home w/Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor w/Test Button - 2-Pack
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FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home w/Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor w/Test Button - 2-Pack
Fireangel
31% OffFree Shipping
Why we love it
  • Alerts with flashing lights.
  • Test button ensures functionality.
  • Includes replaceable AA batteries.
Main Highlights
  • CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. NEVER IGNORE THIS ALARM.
  • TEST BUTTON: Press the large test button to ensure your CO detector is working properly. A loud, high-pitched sound and the red LED flashing four times will verify that the alarm is functioning correctly.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber '!' and an audible chirp will alert you when the batteries need replacing. Test your FireAngel carbon monoxide alarm regularly to ensure it is operational.
  • SLEEP EASY FUNCTION: Press the large test button to silence the low battery alert. This activates the Sleep Easy mode on the carbon monoxide monitor, muting the low battery chirp for 8 hours whilst the amber light flashes. Replace the batteries ASAP.
  • TRAVEL CARBON MONOXIDE DETECTOR: Each compact device measures 120 x 73 x 35.5 mm and comes with an integrated mounting bracket and screws, allowing for easy wall mounting. With 2 devices per pack, take 1 with you for on the go holiday protection.
  • SAFETY ASSURED: The FA6813 detector holds a CE & UKCA mark and has been designed to conform to the standards BS EN 50291-1: 2008 and EN 50291-2: 2019. Suitable for homes in England and Wales, but not for Scottish homes under the new regulations.
  • FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.
Show More
9.6
Superb
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9.6
Superb
Fireangel
FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home w/Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor w/Test Button - 2-Pack
31% OffFree Shipping
Why we love it
  • Alerts with flashing lights.
  • Test button ensures functionality.
  • Includes replaceable AA batteries.
Main Highlights
  • CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. NEVER IGNORE THIS ALARM.
  • TEST BUTTON: Press the large test button to ensure your CO detector is working properly. A loud, high-pitched sound and the red LED flashing four times will verify that the alarm is functioning correctly.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber '!' and an audible chirp will alert you when the batteries need replacing. Test your FireAngel carbon monoxide alarm regularly to ensure it is operational.
  • SLEEP EASY FUNCTION: Press the large test button to silence the low battery alert. This activates the Sleep Easy mode on the carbon monoxide monitor, muting the low battery chirp for 8 hours whilst the amber light flashes. Replace the batteries ASAP.
  • TRAVEL CARBON MONOXIDE DETECTOR: Each compact device measures 120 x 73 x 35.5 mm and comes with an integrated mounting bracket and screws, allowing for easy wall mounting. With 2 devices per pack, take 1 with you for on the go holiday protection.
  • SAFETY ASSURED: The FA6813 detector holds a CE & UKCA mark and has been designed to conform to the standards BS EN 50291-1: 2008 and EN 50291-2: 2019. Suitable for homes in England and Wales, but not for Scottish homes under the new regulations.
  • FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.
Show More
5
KARUOTOP Carbon Monoxide Detector, Portable CO Alarm with 10-Year Sealed Battery, Digital LCD Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
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KARUOTOP Carbon Monoxide Detector, Portable CO Alarm with 10-Year Sealed Battery, Digital LCD Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
KARUOTOP
30% OffFree Shipping
Why we love it
  • State-of-the-art electrochemical sensor.
  • Built-in 10-year battery.
  • Real-time LCD display.
Main Highlights
  • Dependability & Precision: Certified by UKCA and compliant with EN 50291, this carbon monoxide alarm accurately detects CO levels in the air. When danger is detected, it instantly triggers a loud 85 dB alarm to alert and protect your family.
  • Built-In 10-Year Battery: Equipped with a sealed lithium battery that provides 10 years of continuous power, eliminating frequent replacements. Can be switched off when not in use to extend battery life.
  • Real-Time LCD Display: The large backlit LCD screen continuously shows real-time CO levels—even when they are at zero. Its clear visibility in both daylight and low light ensures 24/7 monitoring at a glance.
  • Smart LED Indicators: Features three intuitive LEDs for clear status updates: green flashes every 60 seconds for normal operation, red signals an alarm, and yellow indicates a malfunction—ensuring you always know the detector’s status.
  • Flexible Installation: Designed for both wall mounting and free-standing use. Perfect for your home, RV, or while traveling, this compact CO alarm offers reliable protection wherever you go.
Show More
9.5
Superb
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9.5
Superb
KARUOTOP
KARUOTOP Carbon Monoxide Detector, Portable CO Alarm with 10-Year Sealed Battery, Digital LCD Carbon Monoxide Alarm for Home & Travel, EN 50291 Certified
30% OffFree Shipping
Why we love it
  • State-of-the-art electrochemical sensor.
  • Built-in 10-year battery.
  • Real-time LCD display.
Main Highlights
  • Dependability & Precision: Certified by UKCA and compliant with EN 50291, this carbon monoxide alarm accurately detects CO levels in the air. When danger is detected, it instantly triggers a loud 85 dB alarm to alert and protect your family.
  • Built-In 10-Year Battery: Equipped with a sealed lithium battery that provides 10 years of continuous power, eliminating frequent replacements. Can be switched off when not in use to extend battery life.
  • Real-Time LCD Display: The large backlit LCD screen continuously shows real-time CO levels—even when they are at zero. Its clear visibility in both daylight and low light ensures 24/7 monitoring at a glance.
  • Smart LED Indicators: Features three intuitive LEDs for clear status updates: green flashes every 60 seconds for normal operation, red signals an alarm, and yellow indicates a malfunction—ensuring you always know the detector’s status.
  • Flexible Installation: Designed for both wall mounting and free-standing use. Perfect for your home, RV, or while traveling, this compact CO alarm offers reliable protection wherever you go.
Show More
6
Kidde 10LLDCO Ten Year Life Carbon Monoxide Alarm Digital Display with Sealed Longlife Battery
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Kidde 10LLDCO Ten Year Life Carbon Monoxide Alarm Digital Display with Sealed Longlife Battery
Kidde
Free Shipping
Why we love it
  • Real-time CO level display.
  • 10-year sealed battery.
  • Decade-long warranty protection.
Main Highlights
  • LIFETIME BATTERY: Equipped with a built-in 10 year sealed lithium battery which never needs replacing; Designed to last the full 10 year lifetime of your alarm
  • 10 YEAR WARRANTY: Backed by a comprehensive 10 year manufacturer's warranty for complete peace of mind that your alarm will provide reliable ongoing protection
  • VISUAL LCD DISPLAY: Displays CO levels detected from 30ppm, and features a Peak Level button to show highest recorded levels of CO detected between 11 and 999ppm
  • LIGHTWEIGHT & VERSATILE: The compact slimline design of this essential safety device blends seamlessly into your home to provide essential protection for you and your family
  • LOUD & ACCURATE ALARM: From just 50ppm of CO in the air, the Kidde 10LLDCO will emit a loud 85db piercing alarm alerting occupants to the presence of carbon monoxide
  • SAFETY APPROVED: CE and UKCA marked, and Kitemarked to the most up-to-date British Standards Institute (BSI) standard for carbon monoxide alarms (BS EN 50291-1:2018)
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9.3
Superb
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9.3
Superb
Kidde
Kidde 10LLDCO Ten Year Life Carbon Monoxide Alarm Digital Display with Sealed Longlife Battery
Free Shipping
Why we love it
  • Real-time CO level display.
  • 10-year sealed battery.
  • Decade-long warranty protection.
Main Highlights
  • LIFETIME BATTERY: Equipped with a built-in 10 year sealed lithium battery which never needs replacing; Designed to last the full 10 year lifetime of your alarm
  • 10 YEAR WARRANTY: Backed by a comprehensive 10 year manufacturer's warranty for complete peace of mind that your alarm will provide reliable ongoing protection
  • VISUAL LCD DISPLAY: Displays CO levels detected from 30ppm, and features a Peak Level button to show highest recorded levels of CO detected between 11 and 999ppm
  • LIGHTWEIGHT & VERSATILE: The compact slimline design of this essential safety device blends seamlessly into your home to provide essential protection for you and your family
  • LOUD & ACCURATE ALARM: From just 50ppm of CO in the air, the Kidde 10LLDCO will emit a loud 85db piercing alarm alerting occupants to the presence of carbon monoxide
  • SAFETY APPROVED: CE and UKCA marked, and Kitemarked to the most up-to-date British Standards Institute (BSI) standard for carbon monoxide alarms (BS EN 50291-1:2018)
Show More
7
FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button
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FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button
Fireangel
28% OffFree Shipping
Why we love it
  • Clear and loud alarm.
  • Replaceable AA batteries included.
  • Portable for travel safety.
Main Highlights
  • CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. NEVER IGNORE THIS ALARM.
  • TEST BUTTON: Press the large test button to ensure your CO detector is working properly. A loud, high-pitched sound and the red LED flashing four times will verify that the alarm is functioning correctly.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber '!' and an audible chirp will alert you when the batteries need replacing. Test your FireAngel carbon monoxide alarm regularly to ensure it is operational.
  • SLEEP EASY FUNCTION: Press the large test button to silence the low battery alert. This activates the Sleep Easy mode on the carbon monoxide monitor, muting the low battery chirp for 8 hours whilst the amber light flashes. Replace the batteries ASAP.
  • TRAVEL CARBON MONOXIDE DETECTOR: Each portable device comes with an integrated mounting bracket and screws, allowing for easy wall mounting. Measuring 120 x 73 x 35.5 mm, it’s compact enough to travel with, providing on the go holiday protection.
  • SAFETY ASSURED: The FA6813 detector holds a CE & UKCA mark and has been designed to conform to the standards BS EN 50291-1: 2008 and EN 50291-2: 2019. Suitable for homes in England and Wales, but not for Scottish homes under the new regulations.
  • FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.
Show More
9.1
Superb
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9.1
Superb
Fireangel
FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button
28% OffFree Shipping
Why we love it
  • Clear and loud alarm.
  • Replaceable AA batteries included.
  • Portable for travel safety.
Main Highlights
  • CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. NEVER IGNORE THIS ALARM.
  • TEST BUTTON: Press the large test button to ensure your CO detector is working properly. A loud, high-pitched sound and the red LED flashing four times will verify that the alarm is functioning correctly.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber '!' and an audible chirp will alert you when the batteries need replacing. Test your FireAngel carbon monoxide alarm regularly to ensure it is operational.
  • SLEEP EASY FUNCTION: Press the large test button to silence the low battery alert. This activates the Sleep Easy mode on the carbon monoxide monitor, muting the low battery chirp for 8 hours whilst the amber light flashes. Replace the batteries ASAP.
  • TRAVEL CARBON MONOXIDE DETECTOR: Each portable device comes with an integrated mounting bracket and screws, allowing for easy wall mounting. Measuring 120 x 73 x 35.5 mm, it’s compact enough to travel with, providing on the go holiday protection.
  • SAFETY ASSURED: The FA6813 detector holds a CE & UKCA mark and has been designed to conform to the standards BS EN 50291-1: 2008 and EN 50291-2: 2019. Suitable for homes in England and Wales, but not for Scottish homes under the new regulations.
  • FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.
Show More
8
FireAngel FA6812 Digital Carbon Monoxide Detector with LCD Screen, 10-Year CO Alarm Sensor, Portable Carbon Monoxide Alarm for Home, Travel, Caravan
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FireAngel FA6812 Digital Carbon Monoxide Detector with LCD Screen, 10-Year CO Alarm Sensor, Portable Carbon Monoxide Alarm for Home, Travel, Caravan
Fireangel
15% OffFree Shipping
Why we love it
  • Reliable 10-year sensor technology.
  • Clear LCD display for alerts.
  • Includes batteries for convenience.
Main Highlights
  • CARBON MONOXIDE ALARM: The 10-year electrochemical sensor detects dangerous carbon monoxide (CO) levels, alerting with 4 loud chirps and a flashing red light. With no intervention, it switches to Alarm in Absence mode, chirping until deactivated.
  • LCD SCREEN: The LCD screen displays standby mode for current CO levels, active CO alarm, ‘AL’ alarm in absence, battery status, and ‘EOL’ end of life alert to indicate when the device needs to be replaced.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber ‘!’ and continuous chirping indicate a low battery. Replace the batteries to stop the warning.
  • TRAVEL CARBON MONOXIDE DETECTORS: Each portable, free standing device measures 120 x 73 x 35.5 mm and includes an integrated mounting bracket and screws for optional wall mounting.
  • SAFETY ASSURED: The FA6812 Fire Angel carbon monoxide alarm is CE marked and complies with the standards BS EN 50291-1:2018 and BS EN 50291-2:2019.
Show More
9.0
Superb
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9.0
Superb
Fireangel
FireAngel FA6812 Digital Carbon Monoxide Detector with LCD Screen, 10-Year CO Alarm Sensor, Portable Carbon Monoxide Alarm for Home, Travel, Caravan
15% OffFree Shipping
Why we love it
  • Reliable 10-year sensor technology.
  • Clear LCD display for alerts.
  • Includes batteries for convenience.
Main Highlights
  • CARBON MONOXIDE ALARM: The 10-year electrochemical sensor detects dangerous carbon monoxide (CO) levels, alerting with 4 loud chirps and a flashing red light. With no intervention, it switches to Alarm in Absence mode, chirping until deactivated.
  • LCD SCREEN: The LCD screen displays standby mode for current CO levels, active CO alarm, ‘AL’ alarm in absence, battery status, and ‘EOL’ end of life alert to indicate when the device needs to be replaced.
  • BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber ‘!’ and continuous chirping indicate a low battery. Replace the batteries to stop the warning.
  • TRAVEL CARBON MONOXIDE DETECTORS: Each portable, free standing device measures 120 x 73 x 35.5 mm and includes an integrated mounting bracket and screws for optional wall mounting.
  • SAFETY ASSURED: The FA6812 Fire Angel carbon monoxide alarm is CE marked and complies with the standards BS EN 50291-1:2018 and BS EN 50291-2:2019.
Show More
9
Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with Test/Silence Button,Carbon-Monoxide-Detector Comforms to EN 50291 Standard
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Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with Test/Silence Button,Carbon-Monoxide-Detector Comforms to EN 50291 Standard
WISUALARM
20% OffFree Shipping
Why we love it
  • Accurate and reliable detection.
  • 10-year battery life.
  • Loud and clear alarm.
Main Highlights
  • 【Accurate and Reliable】- This CO alarm is equipped with a 10-year sensor that can give a high and stable performance of accurate CO detection and ensures few false alarm.
  • 【10-Year Battery Life】- The carbon monoxide detector comes with a replaceable battery of 10-year that will keep your home continous protection. No need for frequent battery changes.
  • 【Effective Notification】- This CO detector is designed with three-colour LED indicators. The LED light flashed green, yellow, red to indicate power on, fault and alarm.
  • 【Loud and Clear Alarm】- The CO detector features a high-volume buzzer with sound output of 85dB at 3 meters. So that you and your family would not miss any alert.
  • 【Easy&Flexible Installation】- It can be easily mounted on the wall by attached self-adhesive sticker or screws. Also you can let it free-standing by your choice.
  • 【Quality Assurance】- The carbon monoxide detector is tested and certificated by TUV laboratory and meets EN 50291 standard.
  • 【Usage Scenario】- Carbon monoxide is a gas produced by insufficient combustion, so it is essential to install carbon monoxide detectors around barbecues, fireplaces, etc.
  • 【Warning】- This product is not a natural gas detector, not a methane detector, it detects carbon monoxide and can only be used indoors.
Show More
8.9
Excellent
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8.9
Excellent
WISUALARM
Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with Test/Silence Button,Carbon-Monoxide-Detector Comforms to EN 50291 Standard
20% OffFree Shipping
Why we love it
  • Accurate and reliable detection.
  • 10-year battery life.
  • Loud and clear alarm.
Main Highlights
  • 【Accurate and Reliable】- This CO alarm is equipped with a 10-year sensor that can give a high and stable performance of accurate CO detection and ensures few false alarm.
  • 【10-Year Battery Life】- The carbon monoxide detector comes with a replaceable battery of 10-year that will keep your home continous protection. No need for frequent battery changes.
  • 【Effective Notification】- This CO detector is designed with three-colour LED indicators. The LED light flashed green, yellow, red to indicate power on, fault and alarm.
  • 【Loud and Clear Alarm】- The CO detector features a high-volume buzzer with sound output of 85dB at 3 meters. So that you and your family would not miss any alert.
  • 【Easy&Flexible Installation】- It can be easily mounted on the wall by attached self-adhesive sticker or screws. Also you can let it free-standing by your choice.
  • 【Quality Assurance】- The carbon monoxide detector is tested and certificated by TUV laboratory and meets EN 50291 standard.
  • 【Usage Scenario】- Carbon monoxide is a gas produced by insufficient combustion, so it is essential to install carbon monoxide detectors around barbecues, fireplaces, etc.
  • 【Warning】- This product is not a natural gas detector, not a methane detector, it detects carbon monoxide and can only be used indoors.
Show More
10
Firehawk SML CO7B-10Y, White
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Firehawk SML CO7B-10Y, White
Firehawk Safety Products
Free Shipping
Why we love it
  • Long-lasting sealed Lithium battery.
  • End of life indicator present.
  • Compact design with LED indicators.
Main Highlights
  • Sealed 10 year Lithium battery
  • End of life indicator
  • LED indicators
  • Versatile mounting system
  • Compact & stylish design
Show More
8.7
Excellent
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8.7
Excellent
Firehawk Safety Products
Firehawk SML CO7B-10Y, White
Free Shipping
Why we love it
  • Long-lasting sealed Lithium battery.
  • End of life indicator present.
  • Compact design with LED indicators.
Main Highlights
  • Sealed 10 year Lithium battery
  • End of life indicator
  • LED indicators
  • Versatile mounting system
  • Compact & stylish design
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We scanned 843 products

We reviewed these offers relevant to the Carbon Monoxide Detector within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like XINDUM, KARUOTOP, Kidde, Fireangel, WISUALARM, Firehawk Safety Products, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Carbon Monoxide Detector in the market, we considered we took a deep dive into 4216 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: