The YAMADEN YAL-13N3-A2121RE4 is a high-performance limit switch box designed to provide reliable visual and electrical feedback on the position of rotary actuators. Encased in a rugged, weatherproof die-cast aluminum housing (IP67), it is built to withstand harsh industrial environments. This unit features two SPDT mechanical switches for remote position indication and a highly visible 3D dome indicator for at-a-glance status checks. Its NAMUR standard mounting makes it easy to install on a wide range of quarter-turn valves and actuators, ensuring seamless integration into process control systems.