The XS1N18PA349 is a 3-wire Inductive Proximity Sensor with PNP and NO discrete output. Cylindrical M18 sensor. 1 LED yellow for output status. For non contact sensing of metal objects up to 60mm. Nickel plated brass enclosure. IP68 double insulation conforming to IEC 60529 and IP69 K conforming to DIN 40050.