this is from the local rag today
http://edinburghnews.scotsman.com/index ... =601332006
Hi-tech gadgets in the battle against speed traps
THERE are a number of gadgets on the market that help motorists avoid costly fines by pinpointing speed cameras.
The speed camera warning systems vary in price between £80 and £400 and they work on two different types of technology.
The older speed detectors work on radar beams where they detect the frequency of a speed radar trap ahead and warn the driver.
The more sophisticated speed detectors use a satellite global positioning system, where every known speed camera in the UK can be logged and their positions relayed to vehicles as they approach them. The system can be updated but does not detect mobile cameras.
Laser or radar-based detectors are likely to be banned by the Department of Transport in the coming months.
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