The OsiSense XS 4P series Inductive Proximity Sensor that are solely for the detection of metal objects. It basically comprises an oscillator whose windings constitute the sensing face. An alternating magnetic field is generated in front of these windings. Composition of an inductive proximity sensor Detection of a metal object, when a metal object is placed within the magnetic field generated by the sensor, the resulting currents induced form an additional load and the oscillations cease. This causes the output driver to operate and, depending on the sensor type, a normally open or normally closed output signal is produced. Inductive proximity sensors enable the detection, without physical contact, of metal objects. LED indicator Output LED All Telemecanique Sensor inductive proximity sensors incorporate an output state LED indicator. No physical contact with the object to be detected, thus avoiding wear and enabling detection of fragile objects, freshly painted objects.