The MR-275 is a mechanical-optical dual tachometer that will allow the user to make revolutions per minute (RPM's) and speed (m/min.) measurements. Can be used with any motor or device. It offers a high accuracy (0.005%) up to 1 m distance (without contact).
Small size and battery powered make it and easy and portable instrument. In addition its ergonomic design allows to be used comfortably with a single hand.