Turck NI12U-M18-AP6X-H1141 Inductive Sensor; Rated switching distance 12 mm, Non-flush, Threaded barrel, M18 x 1, Chrome-plated brass, Factor 1 for all metals, Protection class IP68, Resistant to magnetic fields, Extended temperature range, High switching frequency, DC 3-wire, 10…30 VDC, NO contact, PNP output, M12 x 1 male connector