The retro-reflex barrier for clear glass recognition works with red light and a reflector. Where conventional retro-reflex light barriers reach their limits, this retro-reflective barrier for clear glass recognition ensures that extremely shiny objects like glass, PET bottles, trays or film can be detected. Via the single-lens optic without blind spots, the sensor can detect objects even through small holes and gaps. The IO-Link interface can be used to configure retro-reflective barriers (PNP/NPN, NC/NO, switching distance) and to display the switching distances and signal values. Range: 1500 mm. Speed: 2000 Hz. Output: PNP. Circuit: NC+NO. Housing: 32 × 16 × 12 mm (1K)