CO alarms save lives
Take the belt and braces approach but note this, CO alarms are not a substitute for the good installation, regular servicing and proper maintenance of fuel burning appliancces and engines.
If you have any fuel burning appliances aboard, an engine or generator, fit a suitable audible carbon monoxide alarm for an added re-assurance.
'Black-spot' colour-changing indicator cards are not good enough. You won't have an instant warning of dangerous CO levels and there's no alarm to wake you up.
If there is potential for CO poisoning on your boat, it is better to have an alarm, than no
If you already have a Kitemarked alarm, tested to BS EN 50291, or 50291-1, the advice is to keep it, test it routinely and when it needs replacing, choose a unit tested to BS EN 50291-2.
If in doubt about the choice of alarm, call the manufacturer's or supplier's support line for more advice.
Alarms and warning devices for people with hearing loss are available
