Products Menu Panasonic Sensors Mitsubishi Electric Control System Epson Robots Koganei Pneumatics AirTAC Oriental Motor Nitta Moore Tube, Hose and Fitting Convum Vacuum System THK Shimpo Reducer NemaAsia Solutions Patlite Products SF-C21 2×4 Safety Input (NPN/PNP selectable), 2×2 PNP Safety Control output, 1×4 PNP Auxiliary output8 Preset logics make setting easier, just select appropriate control logic by turning a switch for settingEasy to create safety-certified customized logics via Configurator SF-C software