Telemecanique Sensors, M18 x 1, PNP-NO/NC Inductive Sensor 51mm Length, 12 → 24 V dc supply voltage. Body Style: Barrel. Detection Range: 5 mm. Terminal Type: M12 - 4 Pin. Maximum DC Voltage: 24V. Mounting Type: Flush Mount. Switching Current: ≤200 mA. IP Rating: IP65, IP67, IP69K. Housing Material: Brass. Minimum Operating Temperature: -25°C. Maximum Switching Frequency: 2kHz. Reverse Polarity Protection: Yes. MPN: XS1N18PC410DSCV