BERM Proximity Switch Cylindrical Shaped 3‑Wire NO Detection Sensor PRL18‑5DN 10‑30VDC Item Type: BERM Proximity SwitchMaterial: Brass and ABS Output Mode: NPN.NO Maximum Current: 200mA Sensing Distance Quotient: Approx. 5mm / 0.2in Standard Detection Object: Approx. 25 x 25 x 1mm / 0.98 x 0.98 x 0.04in (iron) Monitoring Surface Diameter: Approx. 18mm / 0.7in Power Cord: Approx.1.4meter / 4.6ft Detected Object: Magnetic metal Detection Method: Cylindrical Working Temperature: -25℃~70℃ Storage Temperature: -30℃~+80℃ Type: 3-wire How e: The brown power cord is connected to the positive pole, the blue power cord is connected to the negative pole, and the black power cord is connected to the signal output.