Tachometer, 10 to 20,000 rpm, Extech, Mfr#: 461750

Tachometer, RPM Accuracy +/-0.1 Percent, RPM Resolution 0.001 RPM, Maximum Contact RPM 20,000 RPM, Minimum Contact RPM 10 RPM, Maximum Non-Contact RPM Not Applicable, Minimum Non-Contact RPM Not Applicable, Maximum Non-Contact Distance Not Applicable, Minimum Non-Contact Distance Not Applicable, Calibration Certificate Type Available Separately, Maximum Velocity Measured 6,560 fpm, Minimum Velocity Measured 3 fpm, Includes Carrying Case, Wheels for Linear Surface Speed or RPM Measurements