| Good point about the emmissions Mr S this may make Road Angels and the like redundant if they can't detect all types of cameras - might be better to sell it before everybody starts getting rid of them!
You can set the TomTom to warn on different categories of POIs, different distances before you get to the POI as well as different sounds. Since I do most of my driving in towns and cities, I've set the speed camera warning to the cow mooing sound which definitely gets my attention! | 
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