So a few months back i got myself a GPS based satnav/camera detector, and i'm a little bit annoyed with it, so i'm wondering if people can give me some ideas on wether my issues are general with these types of device, or if its just rubbish. The unit i have is a Snooper Syrius S2000. It looks pretty much like your average widescreen satnav, but also has snoopers camera database added on. I figured buying into a proper speed camera detection companies device, rather than buying a tomtom or other unit where speedcameras are most definitely an after thaught and the location databases are probably well out of date and unmaintained, would result in a unit thats actually competent, but it seems not. The biggest issue i have with it, is mobile van warnings. Now i know the database cant possibly know every possible position, and accept that 90% of the warnings will be a false alarm, but the issue i have is that it treats a mobile van exactly the same way as a gatso, in that it starts warning you a set distance before the location, and while 800m is plenty notice for a gatso in a 60limit, mobile vans are often positioned on motorway bridges, and usually by the time the warning trips in, you can already see the bridge, and as a result the camera can presumably see you and have already tagged your speed. As such its completely useless at actually detecting these, and there doesnt appear to be any way to adjust the warning distance. So any opinions of comparable units? What have you got, how well does it work etc?