Proximity Sensor 1,SL is inductance proximity switch,SC is capacitive proximity switch. 2.Output:NPN ... PNP,NO/NC selectable. 2011--SL/SC series Proximity Sensor(Inductance & capactitive) Features:1, High frequency response, long service life(more ... , chemical, paper-making, light industry, etc..2, SL series is inductance proximity switch, mainly for inspection of metal objects. Round shape ...