Mitutoyo 982-551 Electronic Contact Type

Accurate up to 0.006 +/- 0.5% Digit (600 to 25,000 RPM) and 0.4 +/- 1% Digit (600 to 25,000 RPM), 1 to 25,000 RPM Resolution, Contact Tachometer 4.8228 Inch Long x 2.5197 Inch Wide x 1.24 Inch Meter Thick, 1 to 25,000 RPM Measurement