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 ... cable and interface, various dimensions available3, SC series is capacitive proximity switch,universal inspection for metal, plastic, glass, water, oil, etc. ...