BALLUFF Inductive Barrel-Style Proximity Sensor, M8 x 1, 4 mm Detection, PNP Output, 10 → 30 V dc, IP68

3-Wire Non Flush Inductive Proximity Sensors. Inductive proximity sensors detect metallic objects without touching them for this reason inductive sensors are ideal for use in environments where dirt is prevalent and have an ingress protection rating of IP67. Non embeddable Short circuit and polarity reversal protection LED indication