Carbon monoxide alarms

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Regular inspection and maintenance of appliances, vents, flues and chimneys are the best ways to protect you and your family from the danger of carbon monoxide, but for added protection you should install one or more carbon monoxide alarms in your home.

Choosing a carbon monoxide alarm

Make sure the alarm:

  • Complies with European Standard EN 50291
  • Carries the CE mark and a mark of independent certification (e.g. Kitemark)
  • Is marked with an ‘end of life’ indicator
  • Is audible; a visual indicator alone is no use if you're asleep

Alarms are available in most hardware and DIY stores and even some of the larger supermarkets.

Installing a carbon monoxide alarm

Some registered gas installers will supply and fit carbon monoxide alarms in addition to servicing your appliances.  If fitting the alarm yourself, follow the manufacturer’s instructions. 

More than one alarm may be required to offer full protection.  It is recommended that you have an alarm in every room that has a fuel-burning appliance and one within 5 m (16 ft) of every bedroom. 

Test your alarm monthly and replace it when it reaches the end of its life.

Remember, a carbon monoxide alarm is not a substitute for a smoke alarm.

Visit or call 1800 89 89 89 to find out more

Find out more about the causes, signs and symptoms of carbon monoxide and how to protect yourself and others from this deadly poison.