... 2.Output:NPN or PNP,NO/NC selectable. 2011--SL/SC series Proximity Sensor(Inductance & capactitive) Features:1, High frequency ... chemical, paper-making, light industry, etc..2, SL series is inductance proximity switch, mainly for inspection of metal ... M12,M18), standard cable and interface, various dimensions available3, SC series is capacitive proximity switch,universal inspection for metal, plastic, ...