10 Best Carbon Monoxide Detector With App in The UK

Last updated on 27/04/2025

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Safeliveo Wireless Interlinked Wifi Smoke Alarm Heat Alarm Carbon Monoxide Alarm with Remote Control, App notification,10 Year Battery, 85dB Buzzer, Silence and Test Function,CE & BS Certified 6Pack

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Why We Love It

Pre-linked for easy setup.
Provides continuous 10-year protection.
Allows device sharing with family.

Main Highlights

【Pre-Linked】1 x WiFi Smoke Alarm, 2 x Smoke Alarm, 1 x Heat Alarm, 1 x Carbon Monoxide Detector, 1 Remote Control. This bundle has been 'Pre-Linked', after you receive the alrms, you only need to test detectors after switching them on according to the instruction manual and connect the WiFi smoke detector to your mobile phone, pay attention to use 2.4g WiFi.
【Reliable Wireless Interlinked Alarms】 CE-certified detectors, complies with the standards EN 14604:2005 and EN14604 2005/AC:2008. The LED of all the detector for home doesn't flash in normal state. When you sleep at night, there is no annoying flashing LED light, it will not affect your night's sleep.
【Share Device with Your Family】One of the detectors in this kit can be connected to mobile phone(Please check the instructions carefully) After the wifi smoke alarm is bound to Tuya app on your mobile, you can send the link to your friend or family member through the 'device share‘function, and after he/she accepts it, then you can all receive the notification message when the smoke alarm sends out a notification.
【Wireless Interlinked Alarms】Up to 30 wireless alarms can be linked together, when an alarm starts, all alarms go off and each detector can protect an area of 40 square metres. It is recommended to install fire detectors in any bedroom, warehouse and basement. This interconnected smoke detector is covered by a two-year warranty, during the time of use, if you encounter any problems, please feel free to contact me anytime, we will do our best to solve the problem for you!
【10 Years of Continuous Protection&Convenient Installation】High reliability, up to 10 years of continuous operation due to high efficiency and high battery capacity. Saves you from frequent battery changes and provides uninterrupted 24/7 protection, even during power outages. The package contains double-sided adhesive tape as well as the screw set, you can install the detectors for home quickly and cleanly, choose the right installation method according to different ceilings.

FireAngel Pro Connected Smart Carbon Monoxide Alarm for Home - FP1820W2‑R Wireless, Interlink, 10-Year Battery Carbon Monoxide Detector with App Compatibility - Portable, Travel CO Alarm - White

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Why We Love It

Instant alerts to CO levels.
Sealed battery lasts 10 years.
Wireless interlink capability included.

Main Highlights

SMART CARBON MONOXIDE DETECTORS: With an enhanced electrochemical sensor, versatile installation styles, and optional mobile alerts, the Pro Connected CO alarm swiftly detects invisible gas dangers, providing advanced protection for your home
WIRELESS INTERLINKED ALARMS: The FP1820W2- R works perfectly as a standalone unit, but when wirelessly interlinked, it alerts you if any connected alarm detects danger. Compatible with FireAngel Pro Connected Smoke, Heat, and Carbon Monoxide Alarms
ALARM LOCATION: When multiple interlinked alarms sound simultaneously, alerts from secluded areas will be heard across all devices. To find the source of the alert, press the test button on any device to silence all but the initiating alarm
ON THE GO ALERTS: Sync the carbon monoxide monitor with the FireAngel Pro Connected Gateway for enhanced diagnostics. Receive real time notifications on your smartphone or via email through the FireAngel CONNECTED App
SAFETY ASSURED: The wireless CO detector is CE and UKCA certified. It has been third-party approved by the British Standards Institute (BSI) and is Kitemark certified to EN 50291-1: 2010+A1:2012 and EN 50291-2:2010. It includes a 5 year warranty

Netatmo UK NCO-UK Smart Carbon Monoxide Alarm, White

19% OffFree Shipping

Why We Love It

Real-time carbon monoxide monitoring.
Smartphone notifications for alerts.
Long-lasting 10-year battery.

Main Highlights

Monitors the carbon monoxide levels emitted by your fuel-burning appliances (boiler, fireplace, etc.) in real time.
85-decibel alarm plus notification via your smartphone if carbon monoxide is detected in your home.
The 10-year* battery lasts the entire lifetime of the Carbon Monoxide Alarm.
The Self-Test feature checks the Carbon Monoxide Alarm is functioning correctly and alerts you if necessary.
Your Smart Carbon Monoxide Alarm is standalone, so you don’t need to buy a smart home hub.

X-Sense Wi-Fi Combination Smoke Alarm and Carbon Monoxide Alarm with Replaceable Battery, Smart Fire Alarm Compatible with X-Sense Home Security App, SC07-WX, 1-Pack

25% OffFree Shipping

Why We Love It

Reliable detection for utmost safety.
Effortless device sharing feature.
Instant alerts for added security.

Main Highlights

Attention: The SC07-WX Wi-Fi Smoke and Carbon Monoxide Alarm is not compatible with SBS50 base station and does not support interconnect function
Decade-Long Safety with Precision Detection: This smoke and carbon monoxide alarm combines photoelectric smoke and Figaro electrochemical CO sensors, ensuring fast and accurate detection and a 10-year lifespan, giving you the utmost safety and peace of mind
Device Sharing: With the X-Sense Home Security app, you can effortlessly share your devices with 12 family and friends, enabling them to monitor your home safety and receive crucial alerts
CO Alarm Precaution: You’ll receive an immediate warning on the app when the CO level exceeds 100 ppm from your carbon monoxide and smoke detector, enabling you to respond promptly without waiting for a delayed response
CO Detection History at Your Fingertips: Access your home's CO concentration history from anywhere using the app; stay informed about your home's safety with comprehensive CO detection data
Direct 2.4 GHz Wi-Fi Connection: The battery-powered smoke and carbon monoxide alarm connects directly to the X-Sense Home Security app via the 2.4 GHz Wi-Fi network, no base station required
Stay in the Know with Instant Alerts: Keep an eye on your home from anywhere and get immediate push notifications through the X-Sense Home Security app for alarms, low battery, faults, and more

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

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Why We Love It

Portable and lightweight design.
Early warning for safety.
Visual and audible alarms.

Main Highlights

【Carbon Monoxide Detector】TopTes CT-300 is an ideal portable CO tester to help you detect CO gas concentrations timely and accurately, reducing the risk of CO poisoning and protecting your life. It is a must-have tool for homeowners, drivers, campers, DIY-ers, tourists, etc
【Swift & Precise Measurement】The CT-300, with an advanced electrochemical sensor head, swiftly detects CO levels from 0-5000 ppm. Its sensitivity ensures early warnings, allowing timely actions to prevent health risks. Accurate readings empower quick decisions, promoting safety and well-being. Versatile and portable, it guards against CO in various settings, ensuring peace of mind
【Visual & Audible Alarm】The travel CO detector uses both visual and audible alarms. When the concentration of CO reaches the alarm threshold, the screen changes color and emits an urgent alarm sound to alert you of the presence of CO gas in your surroundings, allowing you to promptly detect the danger, protect yourself
【User-Friendly Functions】With high-quality ABS+PC material and anti-slip edge texture, CT-300 is durable and portable; It can be used for 40 hours with new batteries; Low-power indicator will remind you of time to change batteries; It will automatically switch off when not in operation or when no gas is detected within 10 minutes to save power; Backlit screen for easy viewing, adaptable to dim environments
【What You Get】 You will receive 1x CT-300 Carbon Monoxide Detector, 1x Protective Case, 3x AAA Batteries, 1x User Manual. We also provide a 36-month after-sale service and lifetime technical support. Please feel free to contact us if you have any questions or concerns

X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smart Smoke Alarm for Home with Replaceable Battery, XP0A-iR, 1-Pack

29% OffFree Shipping

Why We Love It

Talking alarm announces emergencies.
Dual smoke, CO protection.
Share devices with family.

Main Highlights

Attention: The Smart Combination Smoke and Carbon Monoxide Alarm XP0A-iR connects to the app over Wi-Fi without a base station; XP0A-iR devices are not interlinked and operate independently
Talking Alarm Says the Location: Quickly and accurately react to the danger thanks to this smoke and carbon monoxide alarm which announces the location of the emergency: ‘Warning! Smoke detected in Living Room. Evacuate.’ and ‘Warning! Carbon monoxide detected in Master Bedroom. Move to fresh air.’
Dual Protection: Keep your family safe from both smoke and carbon monoxide with a photoelectric smoke sensor and an electrochemical CO sensor in a single device; peace of mind comes in one alarm
Stay Informed: Get app updates on the alarm, such as low battery, silence mode, test mode and Wi-Fi connection, so you always know what’s going on and that you are being kept safe
Share with Family: Share devices with up to 12 family members at no additional cost using the X-Sense Home Security App; authorized users can receive alerts, view the alarm history, and remotely silence the device, giving everyone control of their home safety anytime, anywhere
Ultra-Slim Design, Loud Alarm: The simple and elegant design of this smoke and carbon monoxide alarm blends seamlessly into your home decor and its dual function saves you from having two devices; the 85 dB alarm ensures you can hear it wherever you are in the house
10-Year Service Life: Protect your family for up to a decade with a single alarm made to be durable with flame-retardant ABS material and long-lasting sensors

X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm for Home with English Voice Alerts, Wireless Interlinked Voice Alarm with SBS50 Base Station, XP0A-MR11

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Why We Love It

Ready to use immediately.
Identifies dangers with voice.
Sleek, unobtrusive design.

Main Highlights

Ready to Use: 1 SBS50 base station, 1 XP0A-MR smoke alarm, 1 power adapter, and 1 power cable included; simply download the X-Sense Home Security app, connect the devices to the app via the 2.4 GHz Wi-Fi network (incompatible with 5 GHz) and then start to protect your home
Talking Alarm Says the Location: Quickly identify any danger thanks to this talking alarm that tells you what's going on where: when smoke or CO is detected, you’ll hear an English voice saying "Warning! Smoke detected in Living Room. Evacuate." or "Warning! Carbon monoxide detected in Living Room. Move to fresh air."
2-in-1 Protection: Enjoy total peace of mind with this dual-purpose alarm fitted with both smoke and carbon monoxide sensors; plus save time and space by only fitting a single unit
Ultra-Slim, Sleek Design: Only 30 mm thick, this unobtrusive alarm easily blends with your home décor; the mounting bracket is 135 mm wide, covering the hole from your old alarm perfectly
Super User-Friendly: Easily install and maintain your alarm thanks to clear spoken instructions helping you to silence alarms, pair over Wi-Fi, identify alarm locations, run tests, detect faults and know when it’s time to change the battery; the easier to maintain, the safer you are
App Alerts: Get instant alerts on your phone whenever the device detects danger or its status changes; share the alarm with up to 12 family members to keep them in the loop
10-Year Lifespan: The fire-retardant ABS body and 10-year sensor life offer performance you can trust for up to 10 years; the replaceable CR123A battery lasts up to 5 years

X-Sense Smart Carbon Monoxide Detector, Silence via App, CO Alarm with LCD Digital Display, Carbon Monoxide Alarm with Replaceable Battery, Compatible with X-Sense Home Security App, XC0C-iR

25% OffFree Shipping

Why We Love It

Instant real-time phone alerts.
Silence alarm via app.
Compact and travel-friendly.

Main Highlights

Please Note: This XC0C-iR carbon monoxide alarm directly connects to the app via a 2.4 GHz Wi-Fi network; it is not compatible with SBS50 base station and does not support interconnect function
Instant Notifications: Get real-time alerts on your phone for CO alarms, low battery warnings, faults, and precautionary CO alerts; the device-sharing feature keeps every family member informed if there is any danger
One Tap to Mute: When the smart CO detector is triggered, the app show PPM changes in real time; once you confirm that everything is OK, you can silence the alarm with a single tap in the app (note: the silence function is disabled if levels exceed 300 ppm)
10-Year Lifespan: This carbon monoxide detector has a durable electrochemical sensor that works for 10 years, giving long-term peace of mind
Free-Standing or Wall-Mounted: Stand this CO alarm on any flat surface or mount it on the wall with the included screws; for best results, install at breathing level and keep it clear of obstructions
Travel-Friendly: Slip this compact 142 × 75 mm CO detector into your bag or suitcase so that you’re protected away from home where CO leaks are unknown; powered by a replaceable CR123A battery, this device can be used anywhere
Easy to Use: Standalone buttons let you easily test/silence the alarm or check peak levels with a single tap, enhancing ease of use while improving accuracy
Clear Status: The backlit display clearly shows current PPM CO levels; a 4-color LED indicator shows the status: red for alarm, yellow for fault or low battery, green for working normal, and blue for pairing mode

XINDUM 10 Years Carbon Monoxide Detector, Smart Carbon Monoxide Alarm with APP, 2.4GHz WiFi, CE Certificated EN50291 Standard CO Detector, LCD Display, 85dB Audible Alarm, Sealed in Lithium Battery

29% OffFree Shipping

Why We Love It

CE certified high accuracy sensor.
Notifications anywhere anytime.
Ten years of protection.

Main Highlights

Reliable Carbon Monoxide Detector: CE certified CO alarmm, comply with EN50291 standard, equipped with high accuracy and reliable electrochemical sensor, monitor the concentration of CO in the air at home all the time.
Notifications to Smartphone: The carbon monoxide detector can connect with Tuya / SmartLife APP through 2.4GHz WiFi router. You can receive the notifications anywhere anytime as long as your phone can surf the internet.
10 Years Wireless CO Detector: The CO Alarm is equipped with high quality electrochemical sensor, Lithium battery (Sealed In) powered, provide 10 years protection for your families. No wires and sockets required. It can be placed anywhere you want.
Loud Alarm Warning: Carbon Monoxide is very dangerous to human, even kill man’s life. But CO can’t be found by 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.
Widely Used: The carbon monoxide monitor is very easy to operate. CO alarm can be placed in kitchen, live room, bedroom, car, vehicle, etc. Mount on the wall or stand on the desk. Tiny and light weight for carrying.

X-Sense Wi-Fi Smart Carbon Monoxide Alarm Carbon Monoxide Detector, Real-Time Push Notifications via X-Sense Home Security App, Replaceable Battery, Free-Standing Design, XC04-WX

28% OffFree Shipping

Why We Love It

10-year battery life.
Instant CO level alerts.
Real-time monitoring app.

Main Highlights

Attention: XC04-WX Wi-Fi Carbon Monoxide Detector is not compatible with SBS50 base station and does not support interconnect function
2.4 GHz Wi-Fi Connection: Easily connect this alarm to the X-Sense Home Security app on your smartphone via a 2.4 GHz Wi-Fi network, without the need for a hub; download the app, sign up, and connect the device
10-Year Sensor Life: This battery-operated smart carbon monoxide detector has a stable and high-performance electrochemical Figaro CO sensor that accurately monitors CO levels in the house, ensuring that your family stays protected for 10 years
Instant Notifications: Stay connected to your alarm and view all its notifications, including its CO alarm, low battery, malfunction, CO alarm precaution, and more; the Device Sharing function lets you add your family members so you can all keep an eye on your home's safety
Real-Time CO Levels & One Button to Silence: When a CO alarm is triggered, the app will show real-time CO level changes; after making sure your surroundings are safe, you can simply silence the alarm via the app
CO Alarm Precaution: Using the app, you will quickly receive a warning that alerts you to any possible risk once the CO level reaches above 100 ppm without waiting for the response time, allowing you to act immediately

8.9

Excellent

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We scanned 1977 products

We reviewed these offers relevant to the Carbon Monoxide Detector With App 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 Safeliveo, Fireangel, Netatmo, X-Sense, TOPTES, XINDUM, 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 Detector With App in the market, we considered we took a deep dive into 9886 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 Safeliveo Wireless Interlinked Wifi Smoke Alarm Heat Alarm Carbon Monoxide Alarm with Remote Control, App notification,10 Year Battery, 85dB Buzzer, Silence and Test Function,CE & BS Certified 6Pack. We love many things about this product by Safeliveo. What sets it apart from the competition is Pre-linked for easy setup, Provides continuous 10-year protection, Allows device sharing with family.
The best value product for most shoppers and where user satisfaction is continuously the highest is FireAngel Pro Connected Smart Carbon Monoxide Alarm for Home - FP1820W2‑R Wireless, Interlink, 10-Year Battery Carbon Monoxide Detector with App Compatibility - Portable, Travel CO Alarm - White by Fireangel based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Carbon Monoxide Detector With App and the best cost-to-value ratio is XINDUM 10 Years Carbon Monoxide Detector, Smart Carbon Monoxide Alarm with APP, 2.4GHz WiFi, CE Certificated EN50291 Standard CO Detector, LCD Display, 85dB Audible Alarm, Sealed in Lithium Batteryat XINDUM with a 29% discount.
Our list of the best Carbon Monoxide Detector With App 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 Detector With App in The UK

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We scanned 1977 products

We concluded that: