Digital Laser Tachometer with a high measuring range and accuracy of both rps and rpm for the perfect tool for anyone needing to measure rotation speeds for their DIY and testing needs.  This laser revolution counter is one of the best tools ever made for those looking for a quick and easy yet highly accurate way for telling the rotation speed of a shaft or disk. All you have to do is attach one of the included reflective tape marks before you start the rotation, aim the digital rev-counter, and you will be getting measurements in up to 500 rps (rotations per second) and 30000 rpm (rotations per minute) at up to 0.02% accuracy within moments! Better yet, this RPM laser gauge allows you to stay up to 400mm or almost 16 inches away while taking readings, so you won't have to worry about loose articles being caught up during testing.> At a Glance... Digital Laser Tachometer Measures up to 500 rps + 30000 rpm Up to 0.02% Accuracy 400mm / 15.7 Inch Range
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