Proximity Sensor NO NPN 6mm 10V to 32VDC 4-Pin
Proximity Sensor Inductive 2 to 7m 6m Range NPN Output 4-Pin
Inductive Proximity Sensor, 2 to 7mm Range, 10 to 32V, 4-Pin Barrel Connector
Proximity Sensor Inductive/Capacitive 2-7cm NPN 4-Pin Barrel Connector