FeaturesIndustry standard 18 mm Dia threaded body has flat sides allowing it to be mounted like a tubular sensor or against any flat surfacePerfect Prox® technology provides exceptional background rejection and application problem solvingVisible sensing beams let you see where the beam is aimed for quick setup and alignmentSolid polyurethane housing completely encapsulates internal circuits for high resistance to shock and vibrationAdaptable modulation circuit provides immunity to crosstalk from other closely mounted sensorsThe industry's only background rejection sensors with a 2-wire circuit design4-wire DC sensors offer both NPN and PNP outputsOutput status indicator visible from a wide 270 deg anglePolycarbonate cable lens, PVC jacket, structural polyurethane foam body enclosureAuto-reset short circuit protection