Tachometer Noncontact Noncontact RPM Range 10 to 99 000 RPM Accuracy +/- 2 Digit Speed Accuracy +/-0.04 Percent Working Distance 50 to 500 mm Working Angle +/-30 Degrees RPM Resolution 1 Light Source Laser Display 5 Digit LCD Features Standalone Capture and Display Standards CE Compliant FCC IEC60825-1 2014 CLASS 3R UKCA Includes (3) AAA Batteries