Carbon Monoxide Detectors protect you against carbon monoxide gas (CO), a by-product of incomplete combustion of fossil fuels. CO gas can also leak from flues and from incorrectly installed gas burners etc. The biggest danger with CO is that it is a completely tasteless and odourless gas and so only CO alarms can detect it. The symptoms from carbon monoxide poisoning are at first flu-like, followed by drowsiness and headache. At higher concentrations CO poisoning can be fatal. Our carbon monoxide detectors will warn you in time if there is any problem with CO in your home. Installing a CO alarm in every room with a natural fuel burning appliance is advisable.