The Tachometer is a precision measuring instrument used to determine the rotational speed (RPM) of motors, shafts, fans, and other rotating equipment. It is widely used in laboratories, maintenance departments, manufacturing plants, and quality control applications to monitor and verify machine performance. Available in contact and non-contact (laser/photo) types, the tachometer provides fast, accurate, and reliable speed measurements. With a clear digital display, compact handheld design, and easy operation, it is an essential tool for preventive maintenance and process control.