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