Carlo Gavazzi ICB18L50N20PCM1 Proximity Sensors Inductive proximity sensor, M18 Nickel-Plated Brass, M12 plug, Sn 20mm, Non-flush mount, Long body, PNP NC output, Supply voltage 10-36Vdc, Max output current 200 mA, Max switching frequency 1,5 kHz, Operating temperature -25C - +70C, IP67