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Battery Operated Carbon Monoxide Detectors

Our battery-operated carbon monoxide (CO) detectors have a loud 85dB alarm to alert you to the presence of CO, alongside an LED or digital display. Some of the alarms also have additional features that will show if carbon monoxide has been present while you have been away from the home or an overnight silence function so low battery warnings don’t keep you awake.

These CO alarms come with manufacturer's warranties of at least 5 years for peace of mind and meet the latest British Standards (BS EN 50291-1: 2018) as a minimum requirement. Battery-operated carbon monoxide detectors are extremely easy to install, they can either be wall mounted or simply positioned on a shelf. We also have a range of portable CO alarms that are also suitable for travel e.g. for use in boats and caravans that have been tested to BS EN 50291-2: 2019.

Image of the 10 Year Longlife Battery Carbon Monoxide Detector - Hispec HSA/BC/10
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10 Year Longlife Battery Carbon Monoxide Detector - Hispec HSA/BC/10

  • Product Lifespan: 10 years
  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Suitable for free standing or wall mounting
  • Certified to BS EN 50291-1 for home use
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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5 out of 5 stars

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£16.66 ex VAT

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Image of the 10 Year Sealed Longlife Battery Operated Carbon Monoxide Alarm - Kidde K10LLCO

10 Year Sealed Longlife Battery Operated Carbon Monoxide Alarm - Kidde K10LLCO

  • Product Lifespan: 10 years
  • Battery: Sealed-in Lithium Battery
  • Warranty: 10 year warranty
  • Coloured LEDs to indicate alarm, operation and fault
  • Kitemarked to BS EN 50291-1: 2018
  • Suitable for both the Welsh and Scottish 2022 legislation
  • Suitable for new fuel-burning appliances per Building Regs Document J
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5 out of 5 stars

From: £18.28 inc VAT

£15.23 ex VAT

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Image of the 10 Year Longlife Battery Carbon Monoxide Alarm - FireAngel FA3820

10 Year Longlife Battery Carbon Monoxide Alarm - FireAngel FA3820

  • Product Lifespan: 10 years
  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Reduced test volume at a single button press
  • Kitemarked to BS EN 50291-1: 2018 (domestic use)
  • Kitemarked to BS EN 50291-2: 2019 (camping / caravans / boats)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.8 out of 5 stars

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Image of the 10 Year Longlife Battery Carbon Monoxide Alarm with Digital Display - Kidde K10LLDCO

10 Year Longlife Battery Carbon Monoxide Alarm with Digital Display - Kidde K10LLDCO

  • Product Lifespan: 10 years
  • Battery: Sealed-in lithium battery
  • Warranty: 10 year warranty
  • Digital display of CO levels from 11ppm
  • Kitemarked to BS EN 50291-1: 2018 for home use
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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4.8 out of 5 stars

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Image of the 10 Year Longlife Battery Carbon Monoxide Alarm with Digital Display - FireAngel FA3322

10 Year Longlife Battery Carbon Monoxide Alarm with Digital Display - FireAngel FA3322

  • Product Lifespan: 10 years
  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Sleep Easy™ and Night Time Sensing eliminate midnight battery warnings
  • Digital display shows CO levels, modes, warning conditions, and temperature
  • Ideal for home use and camping / caravans / boats
  • Kitemarked to BS EN50291-1:2018 and BS EN50291-2:2019
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
  • Suitable for new fuel-burning appliances per Building Regs Document J
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5 out of 5 stars

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Image of the 10 Year Longlife Battery Wireless Carbon Monoxide Alarm – Hispec RF10-PRO Range
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10 Year Longlife Battery Wireless Carbon Monoxide Alarm – Hispec RF10-PRO Range

  • Battery: 10 year sealed lithium battery
  • Warranty: 5 year warranty
  • Radio-interlink up to 20 Hispec RF10-PRO Alarms
  • CE marked and Kitemarked, suitable for Grade F1 installations
  • Compatible with the Hispec Control Unit and Hispec Smoke and Heat Alarms
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

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Image of the Kidde 10LLCO Carbon Monoxide Detector & 10Y29 Optical Smoke Alarm Special Offer
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Kidde 10LLCO Carbon Monoxide Detector & 10Y29 Optical Smoke Alarm Special Offer

  • FREE delivery
  • 10 year battery powered CO detector
  • Kitemarked to BS EN 50291-1: 2010 (domestic use)
  • 10 year battery powered optical smoke alarm
  • Certified to BS EN 14604: 2005
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4.8 out of 5 stars

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Image of the Home Fire Safety Kit with Radio Interlink - Safelincs

Home Fire Safety Kit with Radio Interlink - Safelincs

  • Battery operated smoke and heat alarms with radio interlink
  • Carbon monoxide detector with a sealed 10 year battery
  • Clam shell style case fire blanket suitable for frying pan fires
  • Wet chemical extinguisher suitable for cooking oil fires
  • St John Ambulance first aid kit provides the essentials for minor injuries
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4.5 out of 5 stars

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Image of the Carbon Monoxide Detector 10 Yr Life - Kidde 5CO

Carbon Monoxide Detector 10 Yr Life - Kidde 5CO

  • Product Life: 10 years
  • Battery: AA batteries included
  • Warranty: 7 year warranty
  • LED status display
  • CE Marked 
  • Kitemarked to BS EN 50291-1: 2018 (domestic use)
  • Also suitable for the 2022 Welsh legislation
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4.7 out of 5 stars

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Image of the Digital Display Carbon Monoxide Alarm 10 Yr Life - Kidde 5DCO

Digital Display Carbon Monoxide Alarm 10 Yr Life - Kidde 5DCO

  • Product Life: 10 years
  • Battery: AA batteries included
  • Warranty: 7 year warranty
  • Displays CO levels from 10ppm
  • Peak Level Memory - recalls highest CO levels
  • CE Marked and UKCA Marked
  • Kitemarked to BS EN 50291-1: 2018 (domestic use)
  • Also suitable for the 2022 Welsh legislation
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4.8 out of 5 stars

From: £14.66 inc VAT

£12.22 ex VAT

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Image of the Carbon Monoxide Detector 10 Yr Warranty - Kidde 7CO

Carbon Monoxide Detector 10 Yr Warranty - Kidde 7CO

  • Product Lifespan: 10 years
  • Battery: AA batteries included
  • Warranty: 10 year warranty
  • Ideal for domestic use and camping / caravans / boats
  • Kitemarked to BS EN50291-1
  • Kitemarked to BS EN50291-2
  • Also suitable for the 2022 Welsh legislation
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4.8 out of 5 stars

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Image of the Digital Display Carbon Monoxide Alarm 10 Yr Warranty - Kidde 7DCO

Digital Display Carbon Monoxide Alarm 10 Yr Warranty - Kidde 7DCO

  • Product Life: 10 years
  • Battery: replaceable AA alkaline batteries included
  • Warranty: 10 year warranty
  • Displays CO levels from 10ppm
  • Peak Level Memory - recalls highest CO levels
  • Ideal for domestic use and camping, caravans & boats
  • Kitemarked to BS EN50291-1 and BS EN50291-2
  • Also suitable for the 2022 Welsh legislation
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4.8 out of 5 stars

From: £16.61 inc VAT

£13.84 ex VAT

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Image of the 10 Year Longlife Battery Carbon Monoxide Detector - Kidde 10LLCO

10 Year Longlife Battery Carbon Monoxide Detector - Kidde 10LLCO

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product – GUARANTEED
  • Warranty: 10 year warranty
  • Suitable for wall mounting and free-standing
  • Kitemarked to BS EN 50291-1: 2018 (domestic use)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.7 out of 5 stars

From: £18.28 inc VAT

£15.23 ex VAT

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Image of the 10 Year Longlife Battery Digital Carbon Monoxide Alarm - Kidde 10LLDCO

10 Year Longlife Battery Digital Carbon Monoxide Alarm - Kidde 10LLDCO

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product – GUARANTEED
  • Warranty: 10 year warranty
  • Displays CO levels from 11ppm
  • Reduced sound level test feature
  • Kitemarked to BS EN50291-1 (domestic use)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.8 out of 5 stars

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£18.24 ex VAT

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Image of the 10 Year Longlife Battery Combination Optical Smoke and CO Alarm - FireAngel SCB10-R

10 Year Longlife Battery Combination Optical Smoke and CO Alarm - FireAngel SCB10-R

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product
  • Warranty: 5 year warranty
  • Combined optical smoke and carbon monoxide detector
  • Ideal for hallways, bedrooms and living areas
  • Sleep Easy™ function
  • Kitemarked to EN 14604: 2005 (smoke detection)
  • Kitemarked to EN 50291-1 (carbon monoxide detection)
  • Suitable for ceiling installation
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4.6 out of 5 stars

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Image of the 10 Year Longlife Battery LED Carbon Monoxide Alarm - Firehawk CO7B-10Y

10 Year Longlife Battery LED Carbon Monoxide Alarm - Firehawk CO7B-10Y

  • Product Life: 10 years
  • Battery: Longlife lithium battery
  • Warranty: 10 year warranty
  • Ideal for domestic use and camping, caravans, and boats
  • Kitemarked to BS EN 50291-1 and BS EN 50291-2
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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4.8 out of 5 stars

From: £20.16 inc VAT

£16.80 ex VAT

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Image of the 7 Year Sealed Longlife Battery Digital Carbon Monoxide Alarm - Firehawk CO7BD

7 Year Sealed Longlife Battery Digital Carbon Monoxide Alarm - Firehawk CO7BD

  • Detector battery: 7 year sealed lithium battery
  • Warranty: 7 year manufacturer's warranty
  • Suitable for homes, camping, caravans, and boats
  • Free standing or wall mounting
  • Kitemarked to BS EN50291-1 (domestic use)
  • Kitemarked to BS EN50291-2 (camping / caravans / boats)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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5 out of 5 stars

£25.43 inc VAT

£21.19 ex VAT

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Image of the 10 Year Longlife Battery Radio-Interlinked Carbon Monoxide Alarm - FireAngel Pro Connected FP1820W2-R

10 Year Longlife Battery Radio-Interlinked Carbon Monoxide Alarm - FireAngel Pro Connected FP1820W2-R

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the lifetime of your alarm
  • Warranty: 1 year warranty
  • Can interlink with any Wi-Safe 2 compatible device
  • Suitable for free standing or wall mounting
  • Kitemarked to BS EN 50291-1 (domestic use)
  • Kitemarked to BS EN 50291-2 (camping / caravans / boats)
  • Compliant with Scottish 2022, Welsh Landlord 2022, and Northern Ireland Landlord 2024 legislation
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4.7 out of 5 stars

£58.07 inc VAT

£48.39 ex VAT

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Image of the 10 Year Life Carbon Monoxide Alarm with Long Life Lithium Battery - Ei208

10 Year Life Carbon Monoxide Alarm with Long Life Lithium Battery - Ei208

  • Product Lifespan: 10 years
  • Battery: Built-in, lasts the life time of your product
  • Warranty: 5 year warranty
  • Combined Test & Hush button with low-volume test function
  • Kitemarked to BS EN50291-1 (domestic use)
  • Kitemarked to BS EN50291-2 (camping / caravans / boats / travel)
  • Also suitable for both the Welsh and Scottish 2022 legislation
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4.8 out of 5 stars

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Image of the Safelincs Caravan Fire Safety Kit

Safelincs Caravan Fire Safety Kit

  • Includes smoke and CO alarms, extinguisher, and first aid products
  • Battery powered alarms – no wiring required
  • Includes essential fire and life safety products
  • Suitable for caravans and mobile homes
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4 out of 5 stars

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Symptoms of Carbon Monoxide poisoning

Symptoms of Carbon Monoxide poisoning

The symptoms of CO poisoning are similar to those of a viral infection, such as headache, nausea, dizziness, sore throat and dry cough. The seriousness of the poisoning depends from the concentration of CO in the air and the duration of exposure.

  • At 50ppm (parts per million), an exposure for longer than 30 minutes will start to affect your health.
  • At 200ppm you will get a slight headache after 2-3 hours.
  • At 400ppm strong frontal headache, becoming widespread after 3 hours.
  • At 800ppm Dizziness, nausea, convulsions, insensible after 2 hours.
What is Carbon Monoxide?

What is Carbon Monoxide?

Carbon Monoxide is created as a by-product of incomplete combustion of fuels containing carbon such as wood, gas, oil, etc. It occurs, if boiler flues get blocked, chimneys are not swept regularly or if gas flames are not correctly adjusted. As Carbon Monoxide (CO) cannot be smelled or tasted the increase in CO concentration goes unnoticed. However, even slight increases of CO have serious health implications. You, therefore, need a carbon monoxide detector to alert you if you have CO in your building. If your detector goes off, switch off all fuel burning appliances, open all windows and leave the building. You then need to contact the relevant authority / emergency helpline for the fuel type you are using.

How do Carbon Monoxide Detectors display the presence of CO?

How do Carbon Monoxide Detectors display the presence of CO?

There are largely two alternative ways for a carbon monoxide alarm (CO alarm) to display the presence of dangerous levels of carbon monoxide:

  • LED warning lights together with an alarm siren
  • Digital display of actual CO concentration readings and an audible alarm when dangerous levels are reached.

CO detectors with LED display will only trigger an alarm at over 50ppm (number of CO molecules per million air molecules), a level that ignores the damaging impact of long term lower concentration exposure, believed to be somewhere around 20ppm. This limitation is unfortunately cast in iron by a British Standard.

CO detectors with digital display, while still only audibly alarming at over 50ppm, will at least display the actual CO concentration, even at very low concentrations such as 10ppm. Some of them, will even allow you to read the maximum concentration of CO the detectors has measured since the last query by pressing a button.

Portable CO Alarms

Portable CO Alarms

Portable carbon monoxide detectors allow you to protect yourself against CO whilst traveling. Alarms must have a specific certification for travel (BS EN 50291-2: 2019); those that have this certification are appropriate for travel. This is essential as you may encounter different environments and accommodations with varying levels of CO risk. Carbon monoxide poisoning is responsible for more than 100 deaths annually and in travel destinations there may be fewer regulations in place, which increases the risk of CO exposure. Ensuring safety at home is crucial, but when camping or on a trip you are leaving that protection behind. Portable CO alarms offer a mobile safety precaution against CO in unfamiliar places. These alarms are highly convenient due to their versatility and can be easily moved and positioned wherever needed in your living space whilst on holiday.

Whether you're staying in a hotel, holiday rental, caravan, or visiting friends and family, having a portable CO detector ensures that you can monitor the air quality and detect any dangerous levels of carbon monoxide promptly. Portable CO detectors are compact and easy to use, making them an essential addition to your travel safety gear. By including a CO detector in your travel plans, you are taking crucial steps towards ensuring safety and a worry-free trip.

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