The Discover Speed Detector. A speed detector for $39.95. It’ll only measure speeds up to 60 mph, but that’s as fast as the human eye can track a moving watermelon anyway, isn’t it? # 5 different speed detection modes # Measures speeds from 2 to 60 mph # See how fast you can throw a baseball or how fast your friends can ride their bikes # Special 1:18-scale mode measures speed of R/C vehicles
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