REED Instruments K4020 Digital Stroboscope (10,000 RPM) with NIST Calibration Certificate
The REED Stroboscope freezes the motion and measures the speed of a rotating object, without contact. Simply aim and synchronize the strobe's flash rate (fpm) with the speed (rpm) of the object. You get direct reading of RPM's. The exclusive one-chip micro-computer LSI circuit and crystal control time-base assures accuracy of ±1% and duty cycles from 5 to 30 minutes (depending on RPM range).
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