Carlo Gavazzi ICB12S30N04NC Proximity Sensors Inductive proximity sensor, M12 Nickel-Plated Brass, 2m cable, Sn 4mm, Non-Flush mount, Short body, NPN NC output, Supply voltage 10-36Vdc, Max output current 200 mA, Max switching frequency 2 kHz, Operating temperature -25C - +70C, IP67