Carlo Gavazzi ICB30L50N40NOM1 Proximity Sensors Inductive proximity sensor, M30 Nickel-Plated Brass, M12 plug, Sn 40mm, Non-flush mount, Long body, NPN NO output, Supply voltage 10-36Vdc, Max output current 200 mA, Max switching frequency 100 Hz, Operating temperature -25C - +70C, IP67