The new speed guns don't use radar or lasers, It has a precision shutter speed on a camera. When you go by the vehicles have a movement blur as they move relative to background the shutter speed. The soft ware calculates the distance ( Twin Lenses ) and the width of the blur is measured and from that it calculates your speed. Does it all in about 850 milliseconds. So pray for dark Oh shucks they use a detector that works on the heat spots. A flash can be used for photo taking.nhasan said:I've always used mounted windshield radar detectors, but now I'm thinking of getting a concealed radar detector? Does anyone have this installed on there muranos? If so, any suggested models?