Should have bought a GPS based "Accident Blackspot" detector. The ones that recieve Radar go off every 5 seconds. Anything can trigger them from car key fob unlocker things, house alarms, car alarms, traffic lights, radio masts oh and speed camera's. Thats why I slung my old snooper. Even in "city mode" it went off all the bloody time. So I bought a GPS Road Angel unit. Update it via the web every morning and it will only make a sound near a camera site (even mobile) and it detects laser.