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Best Carbon Monoxide Alarms For Home Mains Powered of 2026
Last updated on 04/04/2026
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1
Aico Ei3028 Mains Powered Multi-Sensor Heat & Carbon Monoxide Alarm
Ei3028
17% 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
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9.8
Exceptional
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9.8
Exceptional
Ei3028
Aico Ei3028 Mains Powered Multi-Sensor Heat & Carbon Monoxide Alarm
17% Off
Check Price
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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
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Value for Money
2
SAFE TECH Mains Powered Radio Interlink 3 In 1 Multi Sensor Smoke Alarm, Dual Interlink 230v Smoke Heat Carbon Monoxide 3 in 1 Alarm with 10 Year Battery, Hardwired Interlinked Smoke Alarm BS 5839‑6
SAFE TECH
12% Off
Why we love it
Comprehensive home safety protection.
High accuracy in alarming.
Customizable wireless network interlinking.
Main Highlights
【Comprehensive Protection】Combines heat, smoke and carbon monoxide detection functions, providing comprehensive home safety protection against three common hazards
【Accuracy in Alarming】Compliance BS EN 14604:2005 (Smoke), BS EN 50291-1:2018 (CO), and BS EN 5446-2:2003 (Heat) standards indicates rigorous testing and certification, ensuring high accuracy and reliability in issuing timely alerts to protect you from fire and carbon monoxide threats
【Wired or Wireless Connection 】This 3 in 1 mains smoke alarm can be hardwired or wirelessly connected to up to 50, so when one alarm is triggered, they all sound and notify everyone of the emergency
【Hardwired and 10 Years Tamperproof Backup Battery Installed】The wired smoke alarm mains powered can be connected for use in addition to the 10 years tamperproof battery backup. When the power goes out in your house, the detector will still keep you safe
【Customizable Wireless Network】This smoke and carbon monoxide alarm can be interlinked with our interlinked range. You can create various grouped networks to meet your needs and interconnect alarms with the SAFE-TECH AJ Series, so that when one alarm is triggered, all of them go off, fully protecting your home and family
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9.6
Superb
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9.6
Superb
SAFE TECH
SAFE TECH Mains Powered Radio Interlink 3 In 1 Multi Sensor Smoke Alarm, Dual Interlink 230v Smoke Heat Carbon Monoxide 3 in 1 Alarm with 10 Year Battery, Hardwired Interlinked Smoke Alarm BS 5839‑6
12% Off
Check Price
Show More
Why we love it
Comprehensive home safety protection.
High accuracy in alarming.
Customizable wireless network interlinking.
Main Highlights
【Comprehensive Protection】Combines heat, smoke and carbon monoxide detection functions, providing comprehensive home safety protection against three common hazards
【Accuracy in Alarming】Compliance BS EN 14604:2005 (Smoke), BS EN 50291-1:2018 (CO), and BS EN 5446-2:2003 (Heat) standards indicates rigorous testing and certification, ensuring high accuracy and reliability in issuing timely alerts to protect you from fire and carbon monoxide threats
【Wired or Wireless Connection 】This 3 in 1 mains smoke alarm can be hardwired or wirelessly connected to up to 50, so when one alarm is triggered, they all sound and notify everyone of the emergency
【Hardwired and 10 Years Tamperproof Backup Battery Installed】The wired smoke alarm mains powered can be connected for use in addition to the 10 years tamperproof battery backup. When the power goes out in your house, the detector will still keep you safe
【Customizable Wireless Network】This smoke and carbon monoxide alarm can be interlinked with our interlinked range. You can create various grouped networks to meet your needs and interconnect alarms with the SAFE-TECH AJ Series, so that when one alarm is triggered, all of them go off, fully protecting your home and family
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3
SAFE-TECH Mains-powered Radio Interlink Multi Sensors Fire Alarm Home Kit with Backup Battery | BS 5839 3 in 1 Smoke Heat CO Alarms for England & Wales| Approved by Electricians| UKCA Certified Britis
SAFE TECH
16% Off
Why we love it
Interlinked alarms ensure safety.
Fully UK compliant protection.
Easy setup and support.
Main Highlights
【Latest Integration Technology】: Equipped with the built-in radio module, connects up to 50 devices with up to 50 meters indoor using advanced Mesh RF technology — when one alarm sounds, they all sound, true interlink!
【Complete Home Protection】: Includes 2 mains smoke alarms, 1 heat alarm and a 3 in 1 multi sensor alarm, designed to provide comprehensive fire protection for British homes. Radio compatible with all red battery and orange mains range.
【Complies with UK Legislation】: Fully compliant with British standards (BS 5839), BS EN 14604:2005 (Smoke), BS EN 5446-2:2003 (Heat), BS EN 50291-1:2018 (CO), meeting fire regulations for England, Wales, NI and Scotland.
【Set-and-Forget】: D1 Rating, Mains powered and a long-lasting tamperproof backup battery and sensor ensures consistent performance with minimal maintenance.
【Easy Setup & Support】: Quick and simple installation with a comprehensive quick start guide, video installation support, and a dedicated UK telephone support line to assist you.
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9.4
Superb
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9.4
Superb
SAFE TECH
SAFE-TECH Mains-powered Radio Interlink Multi Sensors Fire Alarm Home Kit with Backup Battery | BS 5839 3 in 1 Smoke Heat CO Alarms for England & Wales| Approved by Electricians| UKCA Certified Britis
16% Off
Check Price
Show More
Why we love it
Interlinked alarms ensure safety.
Fully UK compliant protection.
Easy setup and support.
Main Highlights
【Latest Integration Technology】: Equipped with the built-in radio module, connects up to 50 devices with up to 50 meters indoor using advanced Mesh RF technology — when one alarm sounds, they all sound, true interlink!
【Complete Home Protection】: Includes 2 mains smoke alarms, 1 heat alarm and a 3 in 1 multi sensor alarm, designed to provide comprehensive fire protection for British homes. Radio compatible with all red battery and orange mains range.
【Complies with UK Legislation】: Fully compliant with British standards (BS 5839), BS EN 14604:2005 (Smoke), BS EN 5446-2:2003 (Heat), BS EN 50291-1:2018 (CO), meeting fire regulations for England, Wales, NI and Scotland.
【Set-and-Forget】: D1 Rating, Mains powered and a long-lasting tamperproof backup battery and sensor ensures consistent performance with minimal maintenance.
【Easy Setup & Support】: Quick and simple installation with a comprehensive quick start guide, video installation support, and a dedicated UK telephone support line to assist you.
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4
FireAngel CW1-PF-T Mains Carbon Monoxide Alarm with Battery Back Up
Fireangel
20% Off
Why we love it
Continuous protection, 230V powered.
Reliable 9V battery backup.
Quick and easy installation.
Main Highlights
Elevate your safety with our advanced 230V mains powered carbon monoxide alarm, ensuring continuous protection
Enjoy peace of mind with a reliable 9V battery backup, guaranteeing functionality even during power outages
Streamline your installation process with our improved PUSH-FIT base, designed for quick and effortless setup
Trust in precise detection with electrochemical sensing technology, providing accurate results when you need them most
Simplify your maintenance routine with a large central test button, making weekly testing a breeze, all backed by a 5-year manufacturer's warranty for added peace of mind
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9.3
Superb
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9.3
Superb
Fireangel
FireAngel CW1-PF-T Mains Carbon Monoxide Alarm with Battery Back Up
20% Off
Check Price
Show More
Why we love it
Continuous protection, 230V powered.
Reliable 9V battery backup.
Quick and easy installation.
Main Highlights
Elevate your safety with our advanced 230V mains powered carbon monoxide alarm, ensuring continuous protection
Enjoy peace of mind with a reliable 9V battery backup, guaranteeing functionality even during power outages
Streamline your installation process with our improved PUSH-FIT base, designed for quick and effortless setup
Trust in precise detection with electrochemical sensing technology, providing accurate results when you need them most
Simplify your maintenance routine with a large central test button, making weekly testing a breeze, all backed by a 5-year manufacturer's warranty for added peace of mind
Show More
5
Smoke Alarm with Wireless Interlink - Mains Powered Fire Alarm With 10 Year Battery Backup - Kitemark Certified to BS EN 14604 - Wirelessly Interlink with Firechief Alarms for Home - FSM10W Model
Firechief
Why we love it
Reliable smoke detection technology.
Seamless interlinked safety system.
10-year battery backup included.
Main Highlights
Optical smoke sensing technology and automatic dust compensation - the smart smoke detector technology means that these units are less prone to false alarms and are a reliable safety feature for homes
Wirelessly interlink with up to 40 alarms - fire alarms for home settings are essential and interlinked smoke alarms and a heat alarm create a seamless safety system to protect your loved ones
Mains powered with 10-year battery back up - this mains and battery smoke alarm is mains powered for reliability but also supplied with a 10-year sealed smoke alarm battery for peace of mind
Loud audible alarm & LED indicators - this reliable mains smoke alarm immediately notifies you of potential danger. These smoke detectors for home give you time to evacuate and get to safety
Kitemarked and with a 5-year warranty - the qualifying Firechief heat, smoke and carbon monoxide alarm range comes with a 5-year warranty and this smoke alarm is kitemarked, certifying its top quality
Helping you manage fire risks since 1963 - We want to make the world a safer place with effective fire safety equipment. Your peace of mind means a lot to our family business and our wonderful team
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9.2
Superb
Check Price
9.2
Superb
Firechief
Smoke Alarm with Wireless Interlink - Mains Powered Fire Alarm With 10 Year Battery Backup - Kitemark Certified to BS EN 14604 - Wirelessly Interlink with Firechief Alarms for Home - FSM10W Model
Check Price
Show More
Why we love it
Reliable smoke detection technology.
Seamless interlinked safety system.
10-year battery backup included.
Main Highlights
Optical smoke sensing technology and automatic dust compensation - the smart smoke detector technology means that these units are less prone to false alarms and are a reliable safety feature for homes
Wirelessly interlink with up to 40 alarms - fire alarms for home settings are essential and interlinked smoke alarms and a heat alarm create a seamless safety system to protect your loved ones
Mains powered with 10-year battery back up - this mains and battery smoke alarm is mains powered for reliability but also supplied with a 10-year sealed smoke alarm battery for peace of mind
Loud audible alarm & LED indicators - this reliable mains smoke alarm immediately notifies you of potential danger. These smoke detectors for home give you time to evacuate and get to safety
Kitemarked and with a 5-year warranty - the qualifying Firechief heat, smoke and carbon monoxide alarm range comes with a 5-year warranty and this smoke alarm is kitemarked, certifying its top quality
Helping you manage fire risks since 1963 - We want to make the world a safer place with effective fire safety equipment. Your peace of mind means a lot to our family business and our wonderful team
Show More
6
Twin Pack Kidde 5CO Battery Powered Carbon Monoxide Alarm and Detector - 10 Year Sensor Life with AA Batteries
Kidde
Why we love it
Accurate carbon monoxide detection.
Portable with sleek design.
End of life alert.
Main Highlights
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
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
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
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
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)
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9.0
Superb
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9.0
Superb
Kidde
Twin Pack Kidde 5CO Battery Powered Carbon Monoxide Alarm and Detector - 10 Year Sensor Life with AA Batteries
Check Price
Show More
Why we love it
Accurate carbon monoxide detection.
Portable with sleek design.
End of life alert.
Main Highlights
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
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
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
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
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)
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7
Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
Kidde
32% Off
Why we love it
Continuous carbon monoxide monitoring.
Portable and travel-friendly.
Long-lasting battery operation.
Main Highlights
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
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
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
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
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)
Show More
8.8
Excellent
Check Price
8.8
Excellent
Kidde
Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home
32% Off
Check Price
Show More
Why we love it
Continuous carbon monoxide monitoring.
Portable and travel-friendly.
Long-lasting battery operation.
Main Highlights
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
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
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
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
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)
Show More
8
FireAngel Mains Smoke Alarm - SW1-R Mains Powered Optical Smoke Detector with Backup Battery - Wired, Interlinked Smoke Alarms for Home with Test Button and LED Indicators - White
Fireangel
43% Off
Why we love it
Detects all types of fire.
Reliable battery back-up power.
Large central test button.
Main Highlights
SMOKE DETECTORS FOR HOME: The SW1-R mains powered optical smoke alarm has a 9V backup battery for protection during outages. It detects slow-burning fires, making it ideal for living spaces. For full coverage, consider FireAngel Thermoptek Alarms.
ENHANCED SENSING: The high performance optical smoke sensor ‘sees’ white smoke as it enters the alarm, providing a fast response to slow, smouldering fires while being less prone to false alarms.
LINKED SMOKE ALARMS: The SW1-R functions as a standalone unit or can be wired with up to 12 other mains powered smoke (SW1), heat (HW1), or carbon monoxide (CW1) alarms. All alarms sound simultaneously if one is triggered.
SAFETY ASSURED: The SW1-R mains smoke alarm meets British Safety Standard EN 14604: 2005 and is designed for domestic use. It comes with a 5 year warranty.
SLEEP EASY: The Sleep Easy function allows you to silence low battery chirps for up to 8 hours, ensuring an uninterrupted night’s sleep while still keeping your home protected.
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8.7
Excellent
Check Price
8.7
Excellent
Fireangel
FireAngel Mains Smoke Alarm - SW1-R Mains Powered Optical Smoke Detector with Backup Battery - Wired, Interlinked Smoke Alarms for Home with Test Button and LED Indicators - White
43% Off
Check Price
Show More
Why we love it
Detects all types of fire.
Reliable battery back-up power.
Large central test button.
Main Highlights
SMOKE DETECTORS FOR HOME: The SW1-R mains powered optical smoke alarm has a 9V backup battery for protection during outages. It detects slow-burning fires, making it ideal for living spaces. For full coverage, consider FireAngel Thermoptek Alarms.
ENHANCED SENSING: The high performance optical smoke sensor ‘sees’ white smoke as it enters the alarm, providing a fast response to slow, smouldering fires while being less prone to false alarms.
LINKED SMOKE ALARMS: The SW1-R functions as a standalone unit or can be wired with up to 12 other mains powered smoke (SW1), heat (HW1), or carbon monoxide (CW1) alarms. All alarms sound simultaneously if one is triggered.
SAFETY ASSURED: The SW1-R mains smoke alarm meets British Safety Standard EN 14604: 2005 and is designed for domestic use. It comes with a 5 year warranty.
SLEEP EASY: The Sleep Easy function allows you to silence low battery chirps for up to 8 hours, ensuring an uninterrupted night’s sleep while still keeping your home protected.
Show More
9
Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,White,1 Pack
XINDUM
42% Off
Limited time deal
Why we love it
High accuracy CO detection.
Loud and clear alarm.
Hassle-free battery operation.
Main Highlights
Accurate Relialbel CO Detector: Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high accuracy and reliable electrochemical sensor, continuously measure CO concentration in ambient air.
Loud Alarm Warning: Carbon Monoxide can't be found with 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.
10 Year Battery Operated: The CO Alarm is equipped with 1600mAh Lithium battery (Sealed In). No wiring and sockets required. It can be placed anywhere you want.
Easy Intsalltion: The CO alarm can stand freely on the desk, also can be wall mounted with double side tape without drill, or drill to install with screw kits. With the bracket, the CO detector also can be taken down even wall mounted.
Low Battery & End of Life Warning: If the battery is low , the CO alarm beeps once every 60 seconds, and the yellow 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.
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8.7
Excellent
Limited time deal
Check Price
8.7
Excellent
XINDUM
Carbon Monoxide Detector with LCD Digital Display, CE Certified CO Alarm with Sealed in 10 Year Battery, Standalone Audible CO Detector for Home,White,1 Pack
42% Off
Limited time deal
Check Price
Show More
Why we love it
High accuracy CO detection.
Loud and clear alarm.
Hassle-free battery operation.
Main Highlights
Accurate Relialbel CO Detector: Comply with EN 50291 standard, CE Certified Carbon Monoxide alarm, equipped with high accuracy and reliable electrochemical sensor, continuously measure CO concentration in ambient air.
Loud Alarm Warning: Carbon Monoxide can't be found with 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.
10 Year Battery Operated: The CO Alarm is equipped with 1600mAh Lithium battery (Sealed In). No wiring and sockets required. It can be placed anywhere you want.
Easy Intsalltion: The CO alarm can stand freely on the desk, also can be wall mounted with double side tape without drill, or drill to install with screw kits. With the bracket, the CO detector also can be taken down even wall mounted.
Low Battery & End of Life Warning: If the battery is low , the CO alarm beeps once every 60 seconds, and the yellow 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.
Show More
10
FireAngel HW1-R Mains Powered Heat Alarm for Kitchen with 9V Battery Backup, Hardwired Heat Fire Alarms for Home, Attic, Garage, White, 1-Pack
Fireangel
3% Off
Why we love it
Reliable heat detection accuracy.
Easy interconnect capabilities.
Long lifespan and warranty.
Main Highlights
HEAT DETECTOR FOR KITCHEN: The HW1-R mains powered heat alarm is for dusty, humid rooms where traditional smoke alarms can’t be installed. It will alert you to fires without false alarms from cooking fumes.
ADDITIONAL FEATURES: The FireAngel heat alarm includes a test/silence button to mute false alerts and verify functionality, along with a low battery warning for added safety.
INTERLINKED ALARMS: The HW1-R functions as a standalone unit or can be wired with up to 12 other mains powered smoke (SW1), heat (HW1), or carbon monoxide (CW1) alarms. All alarms will sound if one is triggered.
SAFETY ASSURED: The HW1-R mains heat alarm includes a backup 9V battery and meets British Safety Standard BS 5446-2:2003. Designed for domestic use only, it includes a 5 year warranty.
FIREANGEL HOME SAFETY: We offer a wide range of safety products designed to protect your home, including interconnected, wireless Pro Connected alarms and standard smoke, heat, and carbon monoxide alarms.
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8.7
Excellent
Check Price
8.7
Excellent
Fireangel
FireAngel HW1-R Mains Powered Heat Alarm for Kitchen with 9V Battery Backup, Hardwired Heat Fire Alarms for Home, Attic, Garage, White, 1-Pack
3% Off
Check Price
Show More
Why we love it
Reliable heat detection accuracy.
Easy interconnect capabilities.
Long lifespan and warranty.
Main Highlights
HEAT DETECTOR FOR KITCHEN: The HW1-R mains powered heat alarm is for dusty, humid rooms where traditional smoke alarms can’t be installed. It will alert you to fires without false alarms from cooking fumes.
ADDITIONAL FEATURES: The FireAngel heat alarm includes a test/silence button to mute false alerts and verify functionality, along with a low battery warning for added safety.
INTERLINKED ALARMS: The HW1-R functions as a standalone unit or can be wired with up to 12 other mains powered smoke (SW1), heat (HW1), or carbon monoxide (CW1) alarms. All alarms will sound if one is triggered.
SAFETY ASSURED: The HW1-R mains heat alarm includes a backup 9V battery and meets British Safety Standard BS 5446-2:2003. Designed for domestic use only, it includes a 5 year warranty.
FIREANGEL HOME SAFETY: We offer a wide range of safety products designed to protect your home, including interconnected, wireless Pro Connected alarms and standard smoke, heat, and carbon monoxide alarms.
Show More
