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10 Best Travel Carbon Monoxide Detector in The UK

Last updated on 08/07/2025

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GasDoc DS-399 Carbon Monoxide Detector, 168HR Standby, Rechargeable 3-in-1 Portable CO Detector with Audible & Visual Alerts for Travel & Camping, CO Meter for Home, Car & Tent - Dark Blue

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Why We Love It

Portable and lightweight design.
Customizable alarm thresholds available.
Long battery life for trips.

Main Highlights

carbon monoxide detectors portable carbon monoxide detector for travel carbon monoxide detector camping battery powered meter alarm low level home rv smart tester co air quality
Carbon Monoxide Detector: The DS-399 Portable Carbon Monoxide Detector can detect CO levels ranging from 0 to 1000 PPM. It also allows you to set custom alarm thresholds for even earlier detection, ensuring your safety. In addition, the CO meter monitors real-time temperature and humidity, providing you with accurate environmental data
Powerful Rechargeable Battery: Featuring a powerful 1000mAh lithium battery, this CO alarm is equipped with Type-C charging capability, ensuring minimal downtime. A full charge provides up to 168 hours of continuous use, making it a reliable choice for long trips and extended outdoor stays
Easy to Carry: This handheld CO tester is designed to be extremely compact, roughly the size of your palm. Its small size makes it easy to carry, whether tucked in your pocket or attached to your luggage using the included lanyard. Its portability ensures that safety is always within reach during your travels
Audio-visual Alarm: The detector allows you to set custom CO alarm thresholds. When the gas concentration exceeds the set alarm threshold, the device emits an audible alarm, and the ring indicator light below the screen changes color based on the alert level. This dual alert system provides double protection for your safety

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

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Why We Love It

Portable and lightweight design.
Real-time temperature and humidity monitoring.
Long-lasting battery with fast charging.

Main Highlights

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
Large Capacity Battery: The CO detector features a powerful 1000mAh lithium battery with Type-C fast charging support, eliminating the need for frequent replacements and ensuring long-lasting operation. A single full charge lasts 140 hours, providing reliable safety during extended trips, making it an ideal travel companion
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
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
What You Get: You will receive DS-100 Carbon Monoxide Detector, Type - C Cable, Outdoor Special Rope Buckle, User Manual

LSENLTY Upgraded Carbon Monoxide Detector Plug in Wall, Carbon Monoxide Detectors with HD Screen&Indicator Visual&Audible Alarm, 3-in-1 CO Detector(CO Gas Meter, Temp and Humidity) for Home RV Travel

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Why We Love It

Upgraded HD display enhances visibility.
Plug-in design ensures safety compliance.
Advanced sensor provides accurate readings.

Main Highlights

How do I set the carbon monoxide detector screen to rotate? : We have designed a screen display rotation function for the UK. You can rotate the screen display by simply pressing and holding the "bell" button.
【Upgraded HD Display】Not only can you view the carbon monoxide concentration value intuitively on the HD display, you can also clearly see the temperature and humidity conditions that you pay attention to daily, and say goodbye to the eye-catching small screen of the traditional carbon monoxide detector. You can clearly see the readings of carbon monoxide, temperature and humidity from multiple viewing angles.
【Comprehensive CO detector plug-in design】Carbon monoxide is harmful. When the carbon monoxide in the air exceeds the standard, it will cause harm to the human body and endanger life safety. This plug-in carbon monoxide detector is compatible with 230V AC power sockets. Suitable for all UK standard AC sockets such as bedrooms, RVs, kitchens, living rooms, basements, hotel rooms, etc.
【Advanced electrochemical sensor】When exposed to carbon monoxide, it immediately generates current, which means it responds faster and more accurately than traditional carbon monoxide detectors, and is not easily affected by other gases. Please note that it is normal for the product to display a reading of 000PPM when there is no carbon monoxide gas in the air.
【Thoughtful brightness design】You can choose high, medium, low and off screen brightness settings. The breathing light can also be turned off. Please rest assured that even when the breathing light or screen brightness is turned off, the product continues to detect the CO concentration value in the surrounding environment. Once it exceeds 50PPM, the carbon monoxide alarm indicator and screen will light up quickly, and an alarm sound of more than 85dB decibels will be issued to remind you.

YOJOCK Portable 3-in-1 Carbon Monoxide Detector, Rechargeable CO Detector with Temperature & Humidity, 1000mAh Battery, Loud Audible & Visual Alarm for Home, Travel, RV & Camping (White)

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Why We Love It

Reliable long-lasting sensor.
Portable and rechargeable design.
Real-time data with LCD display.

Main Highlights

[YOJOCK 3-in-1 Carbon Monoxide Detector] The YOJOCK portable carbon monoxide detector features a reliable electrochemical sensor with a 10-year lifespan. It continuously monitors CO levels and displays real-time data on the LCD screen. CE certified, ensuring safety in homes and motorhomes.
[Travel Rechargeable CO Detector – CO, Temperature & Humidity] The YOJOCK CO detector measures carbon monoxide, temperature, and humidity levels. Powered by a 1000mAh rechargeable battery, it offers long-lasting use. Ideal for carbon monoxide detectors in households, motorhomes, boats, and campsites.
[Accurate CO Measurement – 0-999 ppm] The YOJOCK CO detector measures CO levels from 0-999 ppm with ±5 ppm accuracy, covering 20-40 m². Perfect for spring and summer, especially in poorly ventilated spaces, motorhomes, camping, grilling, and outdoor activities. Ideal for areas with fireplaces or gas heaters to ensure air quality and safety.
[LCD Display & Loud 85dB Alarm] Data is displayed on the LCD screen, and a loud 85dB alarm is triggered when CO levels exceed 50 ppm, ensuring early detection.
[Energy-Saving & Low Battery Warning] The device enters energy-saving mode when the green light appears, extending battery life while providing continuous protection. A loud warning alerts you when the battery is low, reminding you to recharge the CO detector for your safety.
[Versatile Placement] The carbon monoxide detector can be placed on flat surfaces or mounted on a wall. Compact and discreet, it fits seamlessly in any environment.
[Easy to Use & Versatile Placement] With a compact design, self-test function, and low battery alert, this detector is simple to use. It can be placed on a surface or mounted on the wall, making it perfect for Travel Carbon Monoxide Detectors or home use.
[Package Includes] 1 x Carbon Monoxide Detector, User Manual, Carrying Strap, Weight: 2.4 oz.

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

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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.

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

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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.

FireAngel Carbon Monoxide Alarm and Detector - FA3313 10-Year Sensor Life CO Alarm for Home with 1-Year Replaceable Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor - White

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Why We Love It

Loud clear alarm alert.
Portable for travel safety.
Certified by British Standards.

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 CO SENSING: With increased CO sensing capabilities, the alarm’s high sensitivity mode will activate if it predicts CO levels will rise to or above 180 ppm, providing a quicker alert.
BATTERIES INCLUDED: Each CO monitor is fitted with 2 x 1 year replaceable AA batteries. A flashing amber '!' and an audible beep will alert you when the batteries need 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.
TRAVEL CARBON MONOXIDE DETECTOR: Measuring 119 x 62 x 38 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: The FA3313 CO monitor holds CE and UKCA marks and is certified to BS EN 50291-1:2018 and BS EN 50291-2:2019. It is suitable for all domestic premises, including static and mobile homes, caravans, motor caravans, and boats.
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.

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

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Why We Love It

EN 50291-1:2018 compliant security.
10-year sealed battery life.
Flexible and portable usage.

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.

Ultrafire Fire Safety

UltraFire ULLCO10 Travel Carbon Monoxide Alarm with 10 Year Sealed Battery, Complies to BS EN 50291-1&2

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Why We Love It

Quickly senses low CO levels.
Suitable for travel.
Ten-year manufacturer warranty.

Main Highlights

High Sensitivity: Using advanced sensor technology, this UltraFire detector quickly senses even low levels of dangerous carbon monoxide, alarming from just 30ppm
Ideal for Travel: Kitemarked to BS EN 50291-2 making it suitable for camping, caravans & boats, this small and lightweight unit is designed to keep you safe both at home and on the go
10 Year Warranty: For peace of mind this carbon monoxide detector comes with a full ten year warranty from the manufacturer
Early Warning: Loud, piercing 85db alarm designed to quickly alert occupants when carbon monoxide is detected
Simple Setup: This compact, lightweight detector can be installed freestanding for easy setup and is supplied with screws & rawl plugs if wall mounting is preferred
Clear Indicator Lights: Individual LED lights clearly show the alarm’s operational status and, making it easy to check at a glance that your unit is active

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

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Why We Love It

Certified safety for peace.
Long-lasting 10-year battery.
Compact and highly portable.

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.

8.7

Excellent

We scanned 1653 products

We reviewed these offers relevant to the Travel Carbon Monoxide Detector 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 GasDoc, LSENLTY, YOJOCK, Fireangel, WOLF SHIELD, Ultrafire Fire Safety, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Travel Carbon Monoxide Detector in the market, we considered we took a deep dive into 8266 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 GasDoc DS-399 Carbon Monoxide Detector, 168HR Standby, Rechargeable 3-in-1 Portable CO Detector with Audible & Visual Alerts for Travel & Camping, CO Meter for Home, Car & Tent - Dark Blue. We love many things about this product by GasDoc. What sets it apart from the competition is Portable and lightweight design. , Customizable alarm thresholds available. , Long battery life for trips. .
The best value product for most shoppers and where user satisfaction is continuously the highest is 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 by GasDoc based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Travel Carbon Monoxide Detector 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 41% discount.
Our list of the best Travel Carbon Monoxide Detector 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 Travel Carbon Monoxide Detector in The UK

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We scanned 1653 products

We concluded that: