RADARGUN
Radar gun
A radar speed gun is a device used to measure the speed of moving objects. It is used in law-enforcement to measure the speed of moving vehicles and is often used in professional spectator sport, for such things as the measurement of the speed of pitched baseballs, runners and tennis serves.The above text is a snippet from Wikipedia: Radar gun
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radar gun
Noun
- A hand-held (or mounted) device that emits a radar beam and uses the Doppler effect to measure the velocity of moving objects (especially traffic)
The above text is a snippet from Wiktionary: radar gun
and as such is available under the Creative Commons Attribution/Share-Alike License.