Precision in signal acquisition is the foundation of any Yokogawa control environment. This category features a full range of I/O modules compatible with RIO, FIO, and N-IO architectures. From high-accuracy analog inputs (AAI series) to versatile digital signal processors (ADV series), these modules are built to withstand harsh industrial electrical environments while maintaining signal integrity. Whether you are replacing a single faulty point or expanding your field instrumentation capacity, these authentic Yokogawa I/O components ensure seamless integration with your existing Field Control Stations (FCS).