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Portable Carbon Monoxide Detector Comparison - April 2026

7 Best Portable Carbon Monoxide Detector In the UK

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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Model

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
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)

Brand

Fireangel
Brand
Kidde
Brand
GasDoc
Brand
X-Sense
Brand
GLXY
Brand
EiBEST
Brand
Fenary

Reviews

12,290 reviews
Reviews
65,128 reviews
Reviews
372 reviews
Reviews
158 reviews
Reviews
356 reviews
Reviews
1,474 reviews
Reviews
70 reviews

Tech Specs

item weight

‎141 g
item weight
‎115 g
item weight
107 g
item weight
181 g
item weight
-
item weight
-
item weight
100 g

batteries included

‎Yes
batteries included
‎Yes
batteries included
Yes
batteries included
Yes
batteries included
-
batteries included
-
batteries included
No

power source

‎Battery Powered
power source
‎Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
-
power source
-
power source
-

batteries required

‎Yes
batteries required
‎Yes
batteries required
Yes
batteries required
Yes
batteries required
-
batteries required
-
batteries required
Yes

product dimensions

‎5 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 components

‎Carbon 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 type

‎Alkaline
battery cell type
‎Alkaline
battery cell type
Lithium Polymer
battery cell type
Alkaline
battery cell type
-
battery cell type
-
battery cell type
-

batteries

‎2 AA batteries required. (included)
batteries
‎2 AA batteries required. (included)
batteries
1 CR5 batteries required. included
batteries
-
batteries
-
batteries
-
batteries
-

item package quantity

‎1
item package quantity
‎1
item package quantity
-
item package quantity
1
item package quantity
-
item package quantity
-
item package quantity
-

style

‎Single Pack
style
‎Single Unit
style
-
style
Standalone Model
style
-
style
-
style
-

color

‎White
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
    1
    Fireangel
    27% 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, 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.
  • 9.7
    2
    Kidde
    32% 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
  • 9.6
    3
    GasDoc

    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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Features

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Value for money

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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.

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