Tachometer,2 to 20,000 rpm
6 ft, Light Source Laser, Display Backlit LCD, Memory 10 Data Sets, Features Linear Surface Speed, Includes 9V Battery, Carrying Case, Contact Wheel, Instructions, Reflective Tape.Laser Tachometer, Contact and Noncontact, Contact RPM Range 2 to 20,000, Noncontact RPM Range 2 to 99,999, Speed (FPM) 0 to 6560, Speed (M/Min) 0 to 2000, RPM Accuracy +/-0.05 Percent +1 Digit, Speed Accuracy +/-0.05 Percent +1 Digit, Working Distance 1.