Tachometer Contact and Noncontact Contact RPM Range 0.5 to 20 000 Noncontact RPM Range 5 to 200 000 Speed (FPM) 0.16 to 6561 Speed (M/Min) 0.050 to 2000 RPM Accuracy +/-0.05 Percent of Reading Speed Accuracy +/-0.01 Percent of Reading Working Distance 25 ft Working Angle +/-70 Degrees RPM Resolution 0.001 to 10 Light Source Laser Display 5 Digit LCD Memory Last/Min/Max