Products Menu Panasonic Sensors Mitsubishi Electric Control System Cognex Vision and Barcode Readers Epson Robots Koganei Pneumatics AirTAC Nitta Moore Tube, Hose and Fitting Convum Vacuum System NemaAsia Solutions Patlite Products Sanyo Denki SPG 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