The SA AE 13.33.20.200 AE 33202 K1 SA 55 A/B Type HT 71 Sensor Type SA55A is a proximity sensor designed for industrial automation and motion controls. Specifically, it is a magnetic sensor designed for use with magnetic targets. This sensor, model SA-55A, is capable of detecting the presence or absence of a magnetic target, making it an essential component for various industrial applications. With its reliable performance and precise sensing capabilities, this sensor is ideal for ensuring accurate and efficient automation in a wide range of industrial settings.