The D1606 is an industrial-grade M30 cylindrical High Frequency (13.56 MHz) RFID reader designed for seamless PLC integration via standard Modbus RTU protocol. Built with a nickel-plated brass and ABS housing, this rugged IP67-rated reader utilizes an RS485 interface (M12 A-coded 5-pin) supporting communication rates up to 115.2 kbps. Featuring advanced auto-tuning technology for reliable 6 cm read ranges in metal-heavy environments, the D1606 optimizes data tracking in industrial applications, including automated warehousing, tool management, and production process control.