This OsiSense Design 18 Single Mode (polarized reflex system) photoelectric sensor has a nickel-plated brass housing. It has a switching distance of 2m, NC function PNP output and is pre-wired (2m cable). It has a supply voltage of 12 to 24VDC. This single-mode cylindrical photoelectric sensor has a metallic body, can be mounted directly on a surface or bracket thanks to its external thread and double nuts, and is CSA-certified, UL-certified.