Professional Digital Laser Photo/Contact 2 in 1 Tachometer
SKU: , Measurement Range:CONTACT TACH: RPM, SURFACE SPEED: m/min, Photo Tach: 2.5 to RPM; Accuracy:Photo tach: 0.01 RPM(2.5 to RPM), 0.1 RPM ( to RPM), 1 RPM (above RPM);Contact Tach: 0.01RPM(RPM), 0.1RPM(RPM), 1RPM(over RPM);Surface Speed: 0.01m/min(m/min), 0.1m/min(over 100m/min); Type:Physical Measuring Instruments