*Mini pocket size, easy carryout
*Photo tach. : 5 to 100,000 RPM Contact tach. : 0.5 to 19,999 RPM. Surface speed : m/min, fVmin.
•Laser beam for Photo tachometer, long measuring distance.
•LCD display, RS-232/USB interface.
*Patented.
*DC 1.5V battery ( UM-4, AAA ) x 4.