The SICK SRS50-HAA0-S21 is a rugged incremental rotary encoder designed for precise speed and position feedback in industrial automation and motion-control systems. With a robust 50 mm housing and reliable signal output, this SRS50 model delivers accurate measurement for servo drives, conveyors, packaging machines, robotics and material-handling equipment. Built to withstand harsh environments, it offers strong resistance to shock, vibration and temperature variation, ensuring long service life and stable performance. Ideal for OEM integration, retrofit upgrades or maintenance replacements, the SICK SRS50-HAA0-S21 helps improve motion control accuracy, enhance system responsiveness and reduce machine downtime in demanding industrial applications.