3 stars because everything is fine and nothing more. The device we bought does not meet the requirements. a fastball at 75 mph in one measurement (which is probably accurate), followed by the same pitch, same location, roughly the same speed. and it's recorded in the 50's. It can only be this unit. but I only have this one block to judge. At this point I would suggest saving a little more and going up a notch to $300 (actually $299). As far as I know there aren't that many issues with a device at this price point. Bushnell Velocity Speed Pistol
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