Photoelectric sensors

Best-in-class sensing performance in a miniature housing

Your Benefits

  • Low-cost integration due to optimal machine integration in areas with limited space
  • Application versatility due to reliable detection of shiny or jet-black objects
  • Rugged mounting system with M3 threaded metal inserts reduces maintenance costs due to a long service life
  • High immunity to ambient light reduces downtime caused by false trips
  • Clearly visible light spot simplifies alignment
  • IO-Link provides easy data access from the PLC
  • Quick and easy configuration
  • Quick and easy integration using function blocks


Best-in-class sensing performance in a miniature housing

The W4-3 family of photoelectric sensors offers best-in-class performance in a miniature housing design. Using the latest ASIC and PinPoint LED technologies, these sensors provide reliable object detection of transparent and glossy objects like blisters, e-cards and aluminum cans. Optical axes on the flat side enable simple, space-saving integration in machine environments - even without mounting brackets.

At a glance
  • Best background suppression sensor in its class
  • Universal use of PinPoint technology in all models
  • BGS proximity sensor with laser-like light spot for precise detection tasks
  • Reliable setting via 5-turn potentiometer, teach-in pushbutton, teach-in via cable or IO-Link
  • Flexible sensor settings, monitoring, advanced diagnostics, and display thanks to IO-Link

Technical overview

  • Technical data overview

    Technical data overview

    Dimensions (W x H x D)

    16 mm x 39.5 mm x 12 mm

    16 mm x 36.5 mm x 12 mm

    Light sourcePinPoint LED / LED
    Type of lightVisible red light / Infrared light
    Enclosure rating



    Housing materialPlastic


    Teach-in button



All technical data can be found accompanying the individual product