The [AP] D-A72 / D-A73 Reed Switch Auto Sensor is a high-performance magnetic sensor designed for pneumatic cylinders. With compatibility for both PLC and Relay systems, it ensures stable and accurate piston position detection. The sensor supports DC24V and AC110V (D-A73), while the D-A72 version also covers AC220V for wider applications. Built with an IP67 waterproof enclosure and oil-resistant vinyl jacket cable, it delivers long-lasting durability even in harsh industrial environments. The fast response time of less than 1ms guarantees precision and reliability in automation systems. Equipped with a high-visibility red LED indicator, users can easily check sensor operation status at a glance. Manufactured in Korea by Saewon Electronics, this reed switch sensor combines quality, performance, and affordability