If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Yokogawa NFAI841-S50 S2 Analog I/O Module Introduction The Yokogawa NFAI841-S50 S2 Analog I/O Module is a compact hybrid input/output module designed for STARDOM FCN/FCJ distributed control systems (DCS) . It provides both analog signal acquisition and analog signal output in a sin *Your Name: *Your Email: *Your Name: *Vdcode: Submit