10 Best Carbon Monoxide And Smoke Detector Mains in The UK

Last updated on 27/04/2025
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Best Choice
1
9.8
Exceptional
Google Nest Protect - Smoke Alarm And Carbon Monoxide Detector (Wired)
Google
Google Nest Protect - Smoke Alarm And Carbon Monoxide Detector (Wired)
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Why We Love It
  • Detects both fire types.
  • Alerts phone from anywhere.
  • Easy installation and setup.
Main Highlights
  • The smoke alarm that others look up to. Nest Protect is a smoke and carbon monoxide alarm with a split-spectrum smoke sensor to detect both fast -and slow-burning fires. It can send an alert to your phone, speak to you and even light the way in the dark
  • It tells you what the danger is and where it is. The Split-Spectrum Sensor looks for both fast-and slow-burning fires. It also has a 10 year CO sensor so that it can tell you where poisonous, invisible CO is hiding
  • You'll know, from anywhere. Nest Protect can alert your phone when something is wrong at home. You'll receive a message if the alarm goes off, if the batteries start to run low or if a sensor isn't working. And you can silence your Nest Protect using the Nest app
  • Thoughtful, not annoying. Nest Protect checks itself over 400 times a day and lets you know if something is wrong. It also has Steam Check, so a nice, relaxing shower shouldn't cause your alarm to shout at you. And Pathlight, so it can light your way at night
  • Easy to install. Nest Protect only takes minutes to set up with your iOS or Android device. Once you've added each of your Nest Protects to your Nest account, they will automatically connect to each other. Nest Protect is also simple to attach to the ceiling, thanks to a neatly designed back plate
9.8
Exceptional
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Best Value
2
9.8
Exceptional
Save 24%
XINDUM Wireless Interlinked Smoke Alarms for Home, Heat Detector, Carbon Monoxide Detector with LCD Digital Display, Remote Controller, Fire Alarms with 10 Year Battery, Fire Detectors Bundle for Home
XINDUM
XINDUM Wireless Interlinked Smoke Alarms for Home, Heat Detector, Carbon Monoxide Detector with LCD Digital Display, Remote Controller, Fire Alarms with 10 Year Battery, Fire Detectors Bundle for Home
24% OffFree Shipping
Why We Love It
  • Interlinked alarms ensure immediate alert.
  • Conforms to safety standards reliably.
  • Long-lasting battery ensures constant protection.
Main Highlights
  • Interlinked Fire Alarms Bundle: 2×Smoke Alarm, 1×Heat Alarm, 1×Carbon Monoxide Detector, 1×Remote Controller. No matter which somke detector trigger a alarm, the other linked alarms will sound after receiving the signal. You and your families can get the alarm at first time and take effective actions to put out the fire or escape from dangous place.
  • Fast Responsible and Relialbel Smoke Alarms: CO alarm: Comply with EN 50291 standard, Smoke alarms: Comply with EN14604 standard. CE Certified, equipped with high accuracy and reliable electrochemical or photoelectric sensor, continuously provide protection for your families and property.
  • 10 Year Battery Operated: The Alarms are equipped with sealed in Lithium battery which can support the alarms for 10 years in standby status. No wiring and sockets required. It can be placed anywhere you want.
  • Easy Intsalltion: Easy Installation: There are screw kits and double-sided tape come with interlinked smoke detector. Drill or non-drill as you want. Select the better way to install the fire detector by the places mounted. We recomend to install with screw kits. Solid and once and for all.The CO alarm can stand freely on the desk.
  • Low Battery & End of Life Warning: If the battery is low or the , the alarms beeps once every 60 seconds, and the LED indicator flashes once. If the CO detector reaches the end of service life,the carbon monoxide beeps twice every 30 seconds, and Yellow LED indicator flashes twice.
9.8
Exceptional
Save 24%
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3
9.8
Exceptional
Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarm Bundle | Scotland & England Law Compliant | 10 Year Battery Life | CE & BS Certified | LINKD Alarms | Pre Linked | UK Phone & Email Support
Veltz
Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarm Bundle | Scotland & England Law Compliant | 10 Year Battery Life | CE & BS Certified | LINKD Alarms | Pre Linked | UK Phone & Email Support
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Why We Love It
  • Pre-linked for easy setup.
  • Upgrades safety with cutting-edge technology.
  • Assured 10-year battery life.
Main Highlights
  • 【ADVANCED BUNDLE】 3 x Smoke Alarm, 1 x Heat Alarm, 1 x Carbon Monoxide Alarm 【PRE LINKED】 This bundle has been ‘Pre Linked’ for your convenience. There is no setup required. Simply power the alarms on, test them and then fit them around your home! Done in seconds!
  • 【WIRELESS INTERLINKED ALARMS】 All LINKD Alarms wirelessly interlink with each other. If one alarm is triggered - ALL alarms will sound off together. This ensures all areas of your home are protected and all occupants are notified during an emergency【NEED ADDITIONAL ALARMS?】 Purchase additional alarms using the options above. Additional alarms can be linked with alarms purchased in a bundle. Up to 30 alarms can be linked together in total
  • 【COMPLIANT WITH SCOTTISH, ENGLISH & HOLIDAY LET REGS】 Our interlinked smoke and heat alarms are 100% compliant with the new Scotland Regs (Feb 22), England Regs (Oct 22) & UK Holiday Let Regs (Oct 23). Certified to BS EN14604:2005, BS 5446-2:2003 & British Kitemark EN 50291-1 & Grade F1 standards 【BEWARE】 Competitor systems do not have the correct certification and your home will not be compliant!
  • 【10 YEAR BATTERY LIFE】 All our fire alarms have a built-in & tamper proof 10 Year Lithium battery. This spares you the hassle of frequent battery changes whilst giving you peace of mind that your home is protected 24/7, even during power cuts
  • 【RELIABLE PERFORMANCE】Our interconnected alarm system creates a ‘Mesh’ style network where each alarm is connected to all other alarms. This Mesh network provides a more stable and reliable wireless performance and greater coverage range of up to 100m compared to competitor systems
  • 【CUTTING EDGE TECHNOLOGY】 Our smoke alarms use the latest photoelectric sensor technology which is 5 times more accurate and reacts faster than conventional sensors. Our heat alarms utilise an ultra sensitive temperature sensor that reacts instantly when the ambient temperature exceeds the safe limit. Our CO alarms use the latest electrochemical sensor technology to deliver the ultimate protection and reliability
  • 【EASY INSTALLATION】 This bundle has been ‘Pre Linked’ for your convenience. There is no setup required. Simply switch the linked smoke & heat alarms on, test them and then fit them around your home! Adhesive pads & screws are included with each alarm making installation a breeze. There is no need for special tools or to hire an electrician
  • 【UK COMPANY】 Place your trust in an experienced and fully insured UK Alarm Company. We offer fast and friendly, UK based, Email & Phone support that are waiting to assist you with the set up and installation of your alarm system. We offer a no-hassle warranty on all our products 【BEWARE】 Other alarm systems on Amazon are sold by foreign companies offering no warranty & after sales support, leaving you with faulty alarms that are dangerous and non-compliant.
9.8
Exceptional
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4
9.6
Superb
Save 34%
Ei3028 H AICO Mains Powered Multi-Sensor Heat & Carbon Monoxide Alarm, White
Ei3028
Ei3028 H AICO Mains Powered Multi-Sensor Heat & Carbon Monoxide Alarm, White
34% Off
Why We Love It
  • Ensures home safety.
  • Multi-sensor functionality.
  • Mains powered reliability.
Main Highlights
  • A I CO Ei3028 mains powered multi-sensor heat & Carbon monoxide alarm
9.6
Superb
Save 34%
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5
9.6
Superb
Kidde 4MCO Carbon Monoxide Alarm - Hard Wired - Mains Powered - 230v
Kidde
Kidde 4MCO Carbon Monoxide Alarm - Hard Wired - Mains Powered - 230v
Why We Love It
  • 7-year sealed battery longevity.
  • Early CO level warnings.
  • Digital or LED display options.
Main Highlights
  • Mains powered with 7 year sealed rechargeable lithium back-up battery
  • Provides end of life warning when the alarm has reached the end of it's life
  • LED display indicates alarm state, power supply status and low battery
  • Digital display provides early warning of intermittent and low CO levels and shows FIRE or CO when interconnected with other Kidde alarms
  • Option to have standard LED or digital display
9.6
Superb
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6
9.5
Superb
Save 27%
X-Sense Wi-Fi Smoke and Carbon Monoxide Alarm with Replaceable Battery, Smart Combination Detector Compatible with X-Sense Home Security App, SC06-WX, 2-Pack
X-Sense
X-Sense Wi-Fi Smoke and Carbon Monoxide Alarm with Replaceable Battery, Smart Combination Detector Compatible with X-Sense Home Security App, SC06-WX, 2-Pack
27% OffFree Shipping
Why We Love It
  • Dual threat home protection.
  • Remote monitoring through app.
  • Instantly silences via app.
Main Highlights
  • 2-in-1 Protection: Keep your home safe from both fires and carbon monoxide with a single alarm featuring both photoelectric and electrochemical CO sensors; these sensors operate independently to instantly alert you to hazardous smoke or CO levels, making it simple to protect your family from two deadly threats at once
  • Wi-Fi Connection: Manage this battery-operated smoke and CO alarm directly via the X-Sense Home Security app over 2.4 GHz Wi-Fi, with no base station needed
  • Tap in the App to Silence: Use the app to instantly silence the alarm without the hassle of trying to reach the test/silence button on the smart combination detector
  • Get Alerts Anywhere: Monitor your home remotely and receive immediate app notifications in the case of alarms, low battery, faults or more, giving you extra confidence when you leave the house
  • Device Sharing: Share your smoke and CO detector with up to 12 other users through the X-Sense Home Security app so family, friends and neighbors can get alerts too
  • Precautionary CO Alert: Get an early warning if CO levels exceed 100 ppm, allowing you to take action before a critical situation occurs
9.5
Superb
Save 27%
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7
9.3
Superb
FireAngel Combination Smoke and Carbon Monoxide Alarm for Home - SCB10-R, 10 Year Life, Dual Carbon Monoxide Detector and Smoke Alarm with Test and Hush Button - Combined CO and Fire Alarm - White
Fireangel
FireAngel Combination Smoke and Carbon Monoxide Alarm for Home - SCB10-R, 10 Year Life, Dual Carbon Monoxide Detector and Smoke Alarm with Test and Hush Button - Combined CO and Fire Alarm - White
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Why We Love It
  • Quick detection of all dangers.
  • Audible warnings for safety.
  • Certified, long-life span product.
Main Highlights
  • DUAL PROTECTION: This combination carbon monoxide (CO) and smoke detector offers vital protection against both CO and fire risks. The CO sensor alerts you to invisible gas dangers, and the optical smoke sensor quickly 'sees' slow, smouldering fires.
  • 10 YEAR BATTERY: Each 2 in 1 carbon monoxide and smoke alarm for home use comes with a 10 year sealed battery that lasts the alarm's lifetime. When the device needs replacing, it will ‘chirp’ twice and the amber LED will flash twice every 40 seconds.
  • ADVANCED DETECTION: The advanced optical sensing technology reduces nuisance smoke alarms by 'seeing' thick white smoke as it enters the alarm, while the advanced electrochemical CO sensing technology provides improved CO detection.
  • DISTINCT ALARM SOUNDS: The dual smoke and carbon monoxide alarm features clear visual indicators and separate alerts for each hazard, allowing you to easily identify the specific danger when the alarm sounds
  • POSITIONING: Suitable for the landing, hallway, bedroom, living room and dining room; aim to position the combined smoke alarm and carbon monoxide detector as close to the sleeping area as possible on the wall or ceiling.
  • SAFETY ASSURED: The SCB10-R FireAngel smoke alarm and CO monitor is Kitemark certified, and third-party approved by the British Standards Institute (BSI) to EN 14604:2005+AC:2008 EN 50291-1:2018. It includes a 3-year warranty.
  • FIREANGEL HOME SAFETY: In addition to our combination CO and smoke alarms for the home, we offer a wide range of other safety products designed to protect you and your family. Choose from smart devices, as well as standard smoke and heat alarms.
9.3
Superb
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8
9.1
Superb
Save 3%
3Pack Smoke Alarm and Carbon Monoxide Detector, Smoke Alarm and CO Alarms Battery Powered with LCD Digital Display and Sound Alarm, EN 50291 CO Monitor for Home Safety
Yezala
3Pack Smoke Alarm and Carbon Monoxide Detector, Smoke Alarm and CO Alarms Battery Powered with LCD Digital Display and Sound Alarm, EN 50291 CO Monitor for Home Safety
3% OffFree Shipping
Why We Love It
  • Reliable and accurate detection.
  • Real-time monitoring of CO levels.
  • Loud alarm for safety alerts.
Main Highlights
  • Reliable Detection: This carbon monoxide detector conforms to the EN 50291 standard, ensuring accurate and reliable detection of dangerous CO levels.
  • Digital Display: The LCD digital monitor displays real-time CO levels, allowing you to monitor the air quality in your home or office.
  • Audible Alarm: In case of elevated CO levels, the detector emits a loud audible alarm to alert you and your family, ensuring your safety.
  • Easy Installation: With a straightforward setup process, this CO detector can be easily installed in any room or area where potential CO leaks may occur.
  • Compact Design: Featuring a sleek and compact design, this CO detector blends seamlessly into any interior décor without compromising on functionality.
9.1
Superb
Save 3%
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9
8.9
Excellent
Save 11%
X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07
X-Sense
X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07
11% OffFree Shipping
Why We Love It
  • Ultimate protection from deadly threats.
  • Continuous power for a decade.
  • Accurate, reliable threat detection.
Main Highlights
  • Attention: The SC07 Combination Smoke and Carbon Monoxide Alarm is not compatible with the SBS50 Base Station and does not support interconnectivity or any APP functionality
  • 2-In-1 Protection: Equipped with both photoelectric smoke sensor and electrochemical CO sensors that work independently of each other, this smoke alarm and carbon monoxide detector instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
  • Built-In 10-Year Battery: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; this smoke alarm and carbon monoxide alarm saves you from constantly having to change batteries or wonder if your alarm is still functioning
  • Accurate, Reliable & Highly Sensitive: The X-Sense combination smoke and CO alarm has been redesigned from the inside out; it will ensure that smoke triggers the alarm instead of interference by taking 3 separate smoke samples from the surrounding air; a full 360 ° ring of air intakes ensures complete detection with no blind spots
  • LED Indicator: Clearly informs you of the working status of the smoke alarm with its 3-color flashing LED indicator (green LED indicates normal operation, red LED indicates the alarm status, and yellow LED indicates a fault), ensuring the safety and security of your home 24/7
  • Large LCD Display: Clearly displays battery level and the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds, ensuring you are always aware of the status of your carbon monoxide and smoke detector
8.9
Excellent
Save 11%
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10
8.7
Excellent
Save 15%
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
Fireangel
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
15% OffFree Shipping
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.
8.7
Excellent
Save 15%
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