Inductive sensor NBB20-U10-A2, Switching function, Inductive Sensors, Sensor head bidirectional and rotatable, 20 mm flush, 4-wire DC, 4 LEDs indicator for 360?°„ visibility, With cable gland for cable diameters from 7 to 10.5 mm (extendable with different gasket), Power and output LEDs, With increased sealing, protection classIP68 / IP69K