China M12 Inductive Proximity Sensor Switch Non-Shield Type Lj12A3-4-Z/Bx Detector 4mm 10-30 VDC 200mA NPN Normally Open (NO) 3 Wire, Find details about China Proximity Sensor, Inductive Proximity Switch from M12 Inductive Proximity Sensor Switch Non-Shield Type Lj12A3-4-Z/Bx Detector 4mm 10-30 VDC 200mA NPN Normally Open (NO) 3 Wire