10 Best Carbon Monoxide Detectors For Home in The UK

Last updated on 25/04/2025

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FireAngel Digital Carbon Monoxide Detector with 10-Year Sealed for Life Battery - FA3322 Humidity, Temperature and CO Alarm - Portable Carbon Monoxide Alarms for Home and Travel - CO Detector Monitor

15% OffFree Shipping

Why We Love It

Certified to Kitemark standards.
Provides written safety instructions.
10-year sealed battery.

Main Highlights

PEACE OF MIND: With a digital display and an advanced sensor, the FA3322 offers the highest level of CO detection for your home. When high CO levels are detected, 4 loud chirps, a red LCD, and flashing safety advice will alert you to ‘EVACUATE!’.
TEMPERATURE AND HUMIDITY ALERTS: The FireAngel carbon monoxide alarm also provides temperature and humidity readings. Warnings will sound if either reach extreme highs or lows, making the device perfect for bedrooms and living spaces.
LIFETIME BATTERY: Each digital CO monitor contains a 10-year battery sealed within, offering protection for the lifetime of the device without ever needing to change the batteries.
LOW LEVEL CO WARNING: When low CO levels are detected over a sustained period, an early ‘pre alarm' will sound. The alarm pattern includes 1 short chirp followed by 1 long chirp, an amber LCD screen, and a flashing ‘WARNING’ with CO PPM values.
PORTABLE CARBON MONOXIDE DETECTOR: Each device comes with an integrated mounting bracket and screws for an easy-to-fit setup. Measuring 120 x 76 x 31 mm, it’s compact enough to travel with, providing on the go holiday protection.
SAFETY ASSURED: The FA3322 carbon monoxide monitor has been rigorously tested and is certified to Kitemark standard KM551504. Suitable for domestic premises only.
FIREANGEL HOME PROTECTION: In addition to our CO detectors for home use, 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.

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

21% 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.

2 Pack Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries

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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

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 - 2-Pack - White

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Why We Love It

Rigorously tested and Kitemark certified.
Portable and versatile for travel.
Sealed, tamper-proof long-life battery.

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.

Kidde 10LLDCO Ten Year Life Carbon Monoxide Alarm Digital Display with Sealed Longlife Battery

39% OffFree Shipping

Why We Love It

Real-time CO level display.
10-year sealed battery.
Decade-long warranty protection.

Main Highlights

Digital display that shows current CO levels (from 10 ppm)
10 year sealed battery
10 year manufacturer's warranty

Carbon Monoxide Detector CO Alarm with 10 Year Sealed Battery LCD Digital Display and Sound Warning for Home Office safety EN50291

13% OffFree Shipping

Why We Love It

Real-time CO level display.
10-year sealed battery.
Easy to install.

Main Highlights

【Display Screen and Indicators】this carbon monoxide alarms for home provides real-time carbon monoxide levels, which is a great advantage for immediate response.
【10-year Battery】 The carbon monoxide alarm with sealed battery provides long-term security without the need for frequent replacements.
【Easy to Use】The carbon monoxide detectors is easy to install and operate, making it user-friendly even for those who are not tech-savvy. No wired,It can be easy wall mounted or free standing; you can take it during travel to protect you especially when there has fireplace or smoke
【Accurater and Reliable】The device's sensitivity to carbon monoxide is commendable, ensuring that even the slightest increase in levels is detected. this gas detectors for home has advanced Figaro electrochemical CO sensor
【Effective Notification】The CO alarm sound is loud and clear, ensuring that it can be heard from anywhere in the house.

Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor

28% OffFree Shipping

Why We Love It

High accuracy and reliable.
Clear digital LCD display.
Long-lasting 10-year protection.

Main Highlights

High Quality Carbon Monoxide Detector: High accuracy and reliable 10 year life electrochemical CO sensor and the CO alarm in compliance with EN 50291 standard. Quickly sound 85dB audible alarm and Red LED flashes when dangerous level CO gas is detected to alert home members effectively
Large Digital LCD Display: Clearly display real time CO concentration in PPM, ambient temperature and battery level. Display CO values higher than 25PPM. Three LED indicators easy to know its operation status
High Valued Alarm Features: Automatic self-check function, Alarm concentration record and Test /Silence features. False alarm can be silenced by press "Test" button
10-Year Protection and Convinent to Use: Powered by 3 replaceable 1.5 V AA batteries (Battery Not included). Low-Battery warning signal to alert users to replace the batteries. End of Life warning signal to alert users to replace the alarm after 10-year operation
Widely Used: Compact size and can be easily wall or ceiling mounted and free-standing desktop use. It is suitable for home, travel or camping use

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

19% 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.

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

53% OffFree Shipping

Why We Love It

Loud alarm alerts immediately.
Certified by British Standards.
Portable and versatile design.

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.

Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home

17% OffFree Shipping

Why We Love It

Continuous carbon monoxide monitoring.
Portable and travel-friendly.
Long-lasting battery operation.

Main Highlights

BATTERY POWERED: Each alarm comes equipped with 2x AA batteries included, allowing your alarm to be set up immediately upon receipt
7 YEAR WARRANTY: Enjoy peace of mind knowing your alarm is protected with an extensive seven year manufacturer’s warranty
FREE STANDING OR WALL MOUNTED: For ease of installation, the Kidde 5CO model can be placed free standing on any surface, or can be wall mounted with the included screws and wall plugs
LIGHTWEIGHT & COMPACT: The 5CO’s sleek design allows this life-saving device to blend into your décor, while remaining uncompromising on its strict quality testing
LOUD & ACCURATE ALARM: From just 50ppm of CO in the air, the Kidde 5CO will emit a loud 85db piercing alarm alerting occupants to the presence of carbon monoxide

8.7

Excellent

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We scanned 1136 products

We reviewed these offers relevant to the Carbon Monoxide Detectors For Home 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 Fireangel, XINDUM, Kidde, ZYTA, Scondaor, 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 Detectors For Home in the market, we considered we took a deep dive into 5681 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:

The clear winner of our analysis is FireAngel Digital Carbon Monoxide Detector with 10-Year Sealed for Life Battery - FA3322 Humidity, Temperature and CO Alarm - Portable Carbon Monoxide Alarms for Home and Travel - CO Detector Monitor. We love many things about this product by Fireangel. What sets it apart from the competition is Certified to Kitemark standards, Provides written safety instructions, 10-year sealed battery.
The best value product for most shoppers and where user satisfaction is continuously the highest is 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 by XINDUM based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Carbon Monoxide Detectors For Home and the best cost-to-value ratio is 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 - Whiteat Fireangel with a 53% discount.
Our list of the best Carbon Monoxide Detectors For Home is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Carbon Monoxide Detectors For Home in The UK

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We scanned 1136 products

We concluded that: