How do radar guns work?

• Radar

  • A radar gun is hand-held/or mounted device that is used to detect the speed of a moving object. The term "radar" originated as an acronym for radio detection and ranging. Early radar devices were used primarily to locate objects and to determine the relative distance of an object from the radar device. This was accomplished with the use of radio waves. Radar guns work based on the same principles as the original radar devices, but they are used specifically to detect the speed of objects that have been located.

  Radio Waves