124-3729, BALLUFF, BALLUFF Inductive Threaded Barrel Proximity Sensor, M12, 4 mm Detection, PNP NO, 10 → 30 V dc, Brand BALLUFF, Thread Size M12, Sensor Technology Inductive BALLUFF Inductive Threaded Barrel Proximity Sensor, M12, 4 mm Detection, PNP NO, 10 → 30 V dc