... 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 ... sensor, locating sensor, detection counter sensor, speed sensor in such lines as mechinary, chemical, paper-making, light industry, etc..2, SL series is inductance proximity switch ... series is capacitive proximity switch,universal inspection ...