Advertising Disclosure Portable Carbon Monoxide Detector Comparison - April 2026
7 Best Portable Carbon Monoxide Detector 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. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2 Best Value  9.7Exceptional | 3  9.6Exceptional | 4  9.5Excellent | 5  9.4Excellent | 6  9.1Excellent | 7  9.0Excellent |
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ModelFireAngel 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 | Model Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home | Model DS-100 Portable Carbon Monoxide Detector for Travel, 140H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV - Dark Forest | 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, 1-Pack | Model Portable Carbon Monoxide Detector, 3-in-1 Rechargeble Carbon Monoxide Alarm with 10 Years Sensor Life, 200 Hours Working Time for Travel & Camping, Tent, RV, Home, Kitchen | Model Carbon Monoxide Detector, Carbon Monoxide Alarm, Detector with LED Display (PPM Value Visible at All Times) and 85 dB Audible and Visual Alarm. | Model Carbon Monoxide Detector,Carbon Monoxide Alarm with PPM Display,CO Alarm with Test Button Battery Powered,CO Detector Monitor with 85 dB Audible for Home and Holiday(Batteries NOT Included) |
BrandFireangel | Brand Kidde | Brand GasDoc | Brand X-Sense | Brand GLXY | Brand EiBEST | Brand Fenary |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews |
Tech Specs | ||||||
item weight141 g | item weight 115 g | item weight 107 g | item weight 181 g | item weight - | item weight - | item weight 100 g |
batteries includedYes | batteries included Yes | batteries included Yes | batteries included Yes | batteries included - | batteries included - | batteries included No |
power sourceBattery Powered | power source Battery Powered | power source Battery Powered | power source Battery Powered | power source - | power source - | power source - |
batteries requiredYes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required - | batteries required - | batteries required Yes |
product dimensions5 x 12.3 x 8 cm; 141 g | product dimensions 12.6 x 3.5 x 7.2 cm; 115 g | product dimensions - | product dimensions 14.2 x 3.2 x 7.5 cm 180.5 g | product dimensions - | product dimensions - | product dimensions 10 x 1 x 10 cm 100 g |
included componentsCarbon Monoxide Alarm, 2 x AA Batteries, Manual | included components 2 x AA Batteries, 5CO Carbon Monoxide Alarm, Fixing Kit, User Manuals | 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 | included components - | included components - | included components carbon monoxide detector |
battery cell typeAlkaline | battery cell type Alkaline | battery cell type Lithium Polymer | battery cell type Alkaline | battery cell type - | battery cell type - | battery cell type - |
batteries2 AA batteries required. (included) | batteries 2 AA batteries required. (included) | batteries 1 CR5 batteries required. included | batteries - | batteries - | batteries - | batteries - |
item package quantity1 | item package quantity 1 | item package quantity - | item package quantity 1 | item package quantity - | item package quantity - | item package quantity - |
styleSingle Pack | style Single Unit | style - | style Standalone Model | style - | style - | style - |
colorWhite | color White | color Green | color - | color - | color - | color - |
Available On | Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Fireangel27% OffFireAngel 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
Why we love it
Detects dangerous CO levels effectively.
Battery replacement is easy and convenient.
Portable for travel protection.
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.
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9.7
2Kidde32% Off
Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
Why we love it
Portable and easy to install.
Long-lasting with a 10-year alarm life.
Comes with a 7-year warranty.
Main highlights- 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)
- 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
- 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
- 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
- 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
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9.6
3GasDoc
DS-100 Portable Carbon Monoxide Detector for Travel, 140H Standby, CO Detector with Magnetic Back, Rechargeable 3-in-1 CO Monitor with Audible & Visual Alarm for Camping, Hotel, Car & RV - Dark Forest
Main highlights- What You Get: You will receive DS-100 Carbon Monoxide Detector, Type - C Cable, Outdoor Special Rope Buckle, User Manual
- Long-Lasting Power: Enjoy up to 140 hours of continuous operation with the CO detector’s high-capacity rechargeable system and Type-C fast charging. Reliable and convenient, it provides continuous protection during extended trips—ideal for home, office, or travel use
- Easy to Carry: The CO Meter is designed to be compact and lightweight, measuring 7.6x6x3 cm, making it easy to fit into your luggage without occupying much space. The included lanyard allows for easy carrying, even when traveling light. Ensuring safety and peace of mind wherever your journey takes you
- Carbon Monoxide Detector: The DS-100 is a 3-in-1 portable carbon monoxide detector that can detect carbon monoxide levels from 0 to 1000ppm, it will alert you when the concentration reaches 50 ppm. This allows you to detect and mitigate risks at low level carbon monoxide. It also measures temperature and humidity, enables you to observe temperature and humidity in real time, convenient for daily use
- Audio-visual Alarm: Provides an audio-visual alarm function. In default mode, when the carbon monoxide concentration reaches and exceeds 50ppm, the screen's yellow or red indicator bars will flash, accompanied by a high-decibel alarm. As the carbon monoxide concentration increases, the alarm frequency accelerates, enabling you to promptly detect danger and protect yourself
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Consumer Reviews
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Value for money
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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.
