Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Carbon Monoxide Detectors Comparison - April 2025
7 Best Carbon Monoxide Detectors In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
Overview: Are you looking for a reliable way to protect your family and home from the danger of carbon monoxide poisoning? Carbon monoxide detectors are a must-have for any home, and there are many options for you to choose from. Read on for reviews of the best carbon monoxide detectors available today.
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
Model
Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries
Model
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
Model
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
Model
X-Sense Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display, Portable Carbon Monoxide Alarm for Home with CO Peak Value Memory, XC0C-SR
Model
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
Brand
Kidde
Brand
Fireangel
Brand
Kidde
Brand
Fireangel
Brand
Kidde
Brand
X-Sense
Brand
Fireangel
Reviews
108,760 reviews
Reviews
2,348 reviews
Reviews
1,504 reviews
Reviews
5,068 reviews
Reviews
59,812 reviews
Reviews
316 reviews
Reviews
24 reviews
Features
Instruction
9.9
Instruction
9.9
Instruction
9.9
Instruction
9.1
Instruction
8.6
Instruction
8.6
Instruction
8.4
Worth the money
9.8
Worth the money
9.6
Worth the money
9.8
Worth the money
8.6
Worth the money
8.1
Worth the money
7.9
Worth the money
7.7
Easy installation
9.9
Easy installation
9.8
Easy installation
9.9
Easy installation
9.3
Easy installation
8.9
Easy installation
8.6
Easy installation
8.6
Simple to use
9.9
Simple to use
9.9
Simple to use
9.9
Simple to use
9.1
Simple to use
9.4
Simple to use
9.3
Simple to use
9.1
Battery duration
9.6
Battery duration
9.8
Battery duration
9.9
Battery duration
9.1
Battery duration
8.6
Battery duration
8.4
Battery duration
8.1
Tech Specs
product dimensions
12.7 x 7.3 x 7.8 cm 250 g
product dimensions
5 x 12.3 x 8 cm 141 g
product dimensions
9.6 x 6.1 x 3.8 cm 138 g
product dimensions
3.3 x 12.5 x 6.7 cm 95 g
product dimensions
-
product dimensions
14.2 x 3.2 x 7.5 cm 180.5 g
product dimensions
-
item weight
250 g
item weight
141 g
item weight
138 g
item weight
95 g
item weight
-
item weight
181 g
item weight
-
battery cell type
Alkaline
battery cell type
Alkaline
battery cell type
Alkaline
battery cell type
Lithium
battery cell type
-
battery cell type
Alkaline
battery cell type
-
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
-
power source
Battery Powered
power source
-
style
Protection
style
Single Pack
style
Single Unit
style
Single
style
-
style
Standalone Model
style
-
batteries
3 AA batteries required. included
batteries
-
batteries
2 AA batteries required.
batteries
1 CR123A batteries required. included
batteries
-
batteries
-
batteries
-
batteries included
Yes
batteries included
Yes
batteries included
No
batteries included
Yes
batteries included
-
batteries included
Yes
batteries included
-
item package quantity
2
item package quantity
1
item package quantity
-
item package quantity
1
item package quantity
-
item package quantity
1
item package quantity
-
customer reviews
4.7 4.7 out of 5 stars 27, 190 ratings 4.7 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 587 ratings 4.7 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 376 ratings 4.7 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 1, 267 ratings 4.6 out of 5 stars
customer reviews
-
customer reviews
4.8 4.8 out of 5 stars 79 ratings 4.8 out of 5 stars
customer reviews
-
batteries required
Yes
batteries required
Yes
batteries required
No
batteries required
Yes
batteries required
-
batteries required
Yes
batteries required
-
included components
-
included components
Carbon Monoxide Alarm, 2 x AA Batteries, Manual
included components
-
included components
1 x Carbon Monoxide Detector with sealed battery , 1 x Manual
included components
-
included components
1 Carbon Monoxide Alarm, 2 x AA Batteries Pre-installed , 2 x Screws, 2 x Anchor plugs, 1 x Drill Hole Spacing Indicator Label, 1 User manual
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1
Kidde
Kidde Carbon Monoxide Alarm - 2 Pack
9.9Instruction
9.9Easy installation
9.9Simple to use
Why we love it
The product continuously monitors for CO and has a loud alarm that goes off when its detected.
It can be wall mounted or free standing, making it ideal to take with you when you travel.
The product is battery operated and comes with 3 replaceable AA batteries. It also has a 7 year warranty and 10 year alarm life.
Main highlights
Continuous monitoring for CO with a loud alarm on detection
Can be wall mounted or free standing - ideal for taking on holiday or when travelling
Battery operated (3 replaceable AA batteries supplied)
7 year warranty, 10 year alarm life, Kitemarked and CE Marked
Show more
9.8
2
Fireangel
22% Off
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
9.9Instruction
9.9Simple to use
9.8Easy installation
Why we love it
Detects dangerous CO levels with loud, clear alarm.
Easy battery replacement with included AA batteries.
Portable design for home and travel use.
Main highlights
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.
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.
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.
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.
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.
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.
Show more
9.6
3
Kidde
Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries
9.9Instruction
9.9Easy installation
9.9Simple to use
Main highlights
TUV Certified to EN 50291-1:2018
Suitable for installations in homes in England and Wales (not suitable for homes in Scotland under the new 2022 legislation)
Sleek & compact - dimensions (HxWxD): 61 x 96 x 38mm
Provides low battery warning when batteries require replacement
Electro-chemical CO sensor accurately detects the presence of Carbon Monoxide and emits a loud, clear alarm to alert residents
CE marked, and UKCA tested and certified
Accurately alarms from 50 ppm of CO in the air
3 Year Manufacturer’s Warranty
Show more
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria. We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Related deals you might like for carbon monoxide detectors
Advertising Disclosure
9.9 
9.9
1Kidde
The product continuously monitors for CO and has a loud alarm that goes off when its detected.
