Home / All Categories / Home Improvement / carbon monoxide detector british gas approved

10 Best carbon monoxide detector british gas approved

Welcome to our top 10 product reviews for carbon monoxide detector british gas approved. We've scoured the market to bring you the best of the best, with products ranging from a 7.1 score up to a whopping 9.8 score!

Updated November 2025
bestBest value
3
FireAngel Carbon Monoxide Detector 10-Year Life Sealed Battery - FA3820 Carbon Monoxide Alarm for Home and Holiday - Portable CO Alarm - Travel Carbon Monoxide Detector and Monitor - White
9.5
Excellent

Save £9.01

Free Shipping

FireAngel Carbon Monoxide Detector 10-Year Life Sealed Battery - FA3820 Carbon Monoxide Alarm for Home and Holiday - Portable CO Alarm - Travel Carbon Monoxide Detector and Monitor - White

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.

ENHANCED SENSING: The alarm’s high sensitivity mode will activate if it predicts that CO levels will rise to or above 180 ppm, providing a quicker alert and a ‘pre alarm’ with a visual instruction to ‘ventilate'.

10-YEAR SEALED FOR LIFE BATTERY: Each CO monitor is fitted with a sealed, tamper proof, 10 year battery that will last the lifetime of the alarm. A flashing amber '!' and an audible beep will alert you when the device needs replacing.

ALARM MEMORY: Your device will notify you of a CO alarm in your absence. If not silenced, the alarm will continue to sound until CO levels are safe. The red ‘CO’ light will continue flashing as a visual indication of a previous activation.

PORTABLE CARBON MONOXIDE DETECTOR: Measuring 125 x 67 x 33 mm, this compact, free standing device is travel friendly and provides protection wherever you go. It also includes an integrated mounting bracket and screws for easy wall mounting.

SAFETY ASSURED: Suitable for all domestic and rental premises, the FA3820 carbon monoxide monitor is CE and UKCA marked, Kitemark certified, and third-party approved by the British Standards Institute (BSI) to BS EN 50291-1:2018 and EN 50291-2:2019.

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
9.5
Excellent
amazon

More Deals (1)

Show more
4
WOLF SHIELD Carbon Monoxide Detector 10 Year Sealed Battery |Portable Alarm|EN50291:2018 |No Display (Black)
9.2
Very Good

Free Shipping

WOLF SHIELD Carbon Monoxide Detector 10 Year Sealed Battery |Portable Alarm|EN50291:2018 |No Display (Black)

Main Highlights

✅EN 50291-1:2018: when purchasing a CO alarm, ensure that it is compliant with the most recent update standard EN 50291-1:2018, WOLF SHIELD CO-Alarm is approved according to EN 50291-1:2018, and British Standard has accepted this as well. This CO Alarm will make you feel comfortable, secure, and confident. It will also protect you and your family and alert you if the CO level rises.

✅SEALED IN 10-YEAR BATTERY LIFE: WOLF SHIELD Carbon Monoxide Alarm comes with a 10-year lithium battery and offers a 10-year life-time . There is no need for any kind of wire work, when using this WOLF SHIELD CO-Alarm. You will get a clear warning once the battery is on low status (near the end of 10 years), which means you need to replace the WOLF SHIELD CO Alarm with a new one.

✅Each is 7 centimeters by 7 centimeters tall, smaller than a human hand. Every room in his main room has a clean and tidy side to him Because of the built-in battery, there is no need for leaking wires. You can hang it anywhere you need it, at home, office, RV, or campsite You can rely on our cooperative alerts to protect your health and safety.

✅ INDICATOR LIGHTS: In a normal environment. No CO, it shows nothing and the green LED light flashing indicates that the unit is working properly. An active CO alarm ( from 50 PPM) , the red LED flashes, and the sound is as loud as 85 dB. The yellow LED light flashes means an error/fault;

✅Flexible Use - Our portable lithium battery CO alarm may be used in your house or brought with you when traveling. It is precise and long-lasting. It is compact and light enough to carry along. It may be used at home, at the office, in your tent or RV, and anywhere else where CO levels might be of any concern.

Show more
9.2
Very Good
amazon

More Deals (1)

Show more

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

6
Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with Test/Silence Button,Carbon-Monoxide-Detector Comforms to EN 50291 Standard
8.8
Good

Free Shipping

Carbon Monoxide Detector, 10 Years Battery Carbon Monoxide Alarm, CO Alarm with Test/Silence Button,Carbon-Monoxide-Detector Comforms to EN 50291 Standard

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
8.8
Good
amazon

More Deals (1)

Show more
8
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, Single
8.4
Good

Save £6.01

Free Shipping

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, Single

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
8.4
Good
amazon

More Deals (1)

Show more
10
EIBEST Carbon Monoxide Detector,Carbon Monoxide Alarm, CO Detector With LED display And 85 Decibel Sound And Light Alarm
8.1
Good

Free Shipping

EIBEST Carbon Monoxide Detector,Carbon Monoxide Alarm, CO Detector With LED display And 85 Decibel Sound And Light Alarm

Main Highlights

【Carbon Monoxide Alarm】:When the carbon monoxide concentration reaches 100ppm, the alarm will be activated immediately, the red LED will flash and the buzzer will be triggered at the same time.85dB high pitch can get your attention faster. (Note: short press once can manually turn off the alarm sound)

【Carbon Monoxide Detector】:Equipped with a LCD display for real-time reading of numerical values (ppm) and sound and light alarms. When the concentration exceeds a certain level, the voice alarm and red light will flash. You can quickly and clearly understand the PPM concentration and take appropriate measures to effectively protect your personal and property safety.

【How to use a carbon monoxide alarm】: Powered by two AA batteries, it will automatically turn on after charging and enter working mode, with PPM value visible at any time. The background light will turn off without any operation, but the screen value will remain on, making it easy for you to check the PPM value at any time.

【Carbon Monoxide Alarm Widely Used】: Adopting high-precision electrochemical sensor, it can quickly detect carbon monoxide gas. Can be used in kitchen, bedroom, bathroom, garage, RV, camping and other places. It has passed EN50291 safety certification, reliable quality.

【Alarm self-test】:To test whether the product is effective or not, you can short press the button once for self-test. If the screen does not show the value, it means that the battery power has been exhausted, remind you to replace the battery in time (Note: the battery can standby for 10 months, the sound and light alarm will lead to rapid loss of power).

Show more
8.1
Good
amazon

More Deals (1)

Show more