Laser Tachometer, Contact and Noncontact, Contact RPM Range 0.5 to 20,000, Noncontact RPM Range 10 to 99,999, Speed (FPM) 0.20 to 6560, Speed (M/Min) 0.05 to 1999.9, RPM Accuracy 0.05 Percent of Reading Digit, Working Distance 6.5 ft, RPM Resolution 0.100 (Less than 1000 rpm), 1 (Greater than 1000 rpm), Light Source Laser, Display 5 Digit LCD, Memory Last/Min/Max, Standards CE Compliant, Calibration Certificate NIST