VTE180 Photoelectric Proximity Sensors, Background Blanking Photoelectric proximity switches in cylindrical M18 housing. These SICK proximity sensors have a scanning distance of 400 mm with background suppression. Red sender LED simplifies alignment and saves installation time Power and signal LEDs offer quick and simple troubleshooting Flat and smooth lens reduces the collection of dust and dirt Light spot (distance): 20 mm (400 mm) Switching output: PNP, light/dark-switching VL, VS and VT Series Barrel Style