The Woodward 5464-658 is a high-reliability magnetic pickup (MPU) speed sensor designed for demanding industrial applications. It is engineered to accurately detect the speed of rotating machinery, such as turbines and engines, by sensing passing gear teeth. This sensor generates a frequency signal proportional to the rotational speed, which is then used by a governor or speed control system. Built for harsh environments, the 5464-658 is certified for use in hazardous locations, ensuring safe and dependable operation where flammable gases or vapors may be present.