The combination contact and non-contact tachometer measures rotational and surface speed of motors, conveyor belts, and other moving systems. Contact measurements can be taken in revolutions per minute (RPM), meters per minute, meters per second, feet per minute, feet per second, inches per minute, meters, feet, or inches, while non-contact measurements can be taken in RPM. The tachometer has a 15 x 33mm ( 0.6 x 1.3 inches) LCD display that presents test results and unit of measurement.