Motorists who own speed camera detectors have been warned to dismantle the devices before travelling abroad or face serious penalties.
Sat-nav systems that show the locations of safety cameras are banned in some countries, the Institute of Advanced Motorists (IAM) said.
A survey of motoring clubs in 23 countries across Europe found that only two - the UK and Hungary - permit the use of both camera detectors and points of interest (POI) sat-nav devices.
Camera detection equipment actively detects radar or laser signals from a speed camera or gun and alerts the driver to its presence.
The POI function is built into many sat-nav units and shows the location of fixed safety cameras from information in the unit's CD-ROM database, which can usually be updated.
Neil Greig, Director of the IAM Motoring Trust said: "There have been incidents when camera detectors have been literally ripped out by local police. The best thing to do is check if detectors are permitted in the country you plan to visit or simply don't take one with you."
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