The Monarch PLT200 portable contact/noncontact tachometer measures rotational speed, linear speed, count, and has a Timer, a laser beam for noncontact measurements, and an LCD screen. This contact/noncontact portable tachometer is used for measuring the speed of motors, conveyor belts, and other moving and rotational systems. It can measure rotational speed, linear speed, count, and time for versatility. The tachometer provides contact measurements in in./min, ft./min, yd./min, M/min, or cm/min, and noncontact measurement in RPM for flexibility of use. Its optical sensor is a laser beam that works at a distance of up to 25 feet for user Safety. The LCD screen presents Test results and the unit of measurement, and it has on-target and low battery indicators. It stores maximum, minimum, and last Test result values for ease of data recall. It is auto ranging, to display the most appropriate Test result value automatically; or it can be set to display results with a fixed Decimal value. This tachometer is suitable for measuring rotational speed and other measurements in mechanical or industrial engineering environments.