Photoelectric sensors
W4S-3 Inox Hygiene

Highest reliability, maximum resistance and endless possibilities

Your Benefits

  • Smooth hygienic housing and accessories with no grooves or crevices eliminates the potential for bacteria to grow, providing a more hygienic solution.
  • Long service life in harsh conditions ensures less downtime and fewer replacement costs
  • Easy adjustment via a stainless steel metal membrane teach-in pushbutton
  • Quick and easy alignment due to highly visible PinPoint emitter LED
  • IO-Link provides easy data access from the PLC
  • Quick and easy configuration
  • Quick and easy integration using function blocks


Highest reliability, maximum resistance and endless possibilities

The W4S-3 Inox Hygiene series of photoelectric sensors combines hygienic requirements based on EHEDG with best-in-class performance. These sensors are completely enclosed in a stainless steel housing and can be taught via a stainless steel teach button with a metal membrane. With built in protection for the sensor cable, no additional mounting brackets or mounting holes are required for in-process machine integration. These sensors are designed for a completely hygienic sensor solution that is a necessity for the most hygienic machines.

At a glance
  • Smooth stainless steel housing (316L/1.4404)
  • Hygienic mounting using M12-adapter thread or D12-adapter shaft
  • IP 66, IP 67, IP 68 and IP 69K enclosure rating and Ecolab certified
  • Resistant to a variety of common cleaning and disinfection agents
  • Highly visible laser-like light spot due to PinPoint LED
  • Teach-in via stainless steel pushbutton with a metal membrane
  • Flexible sensor settings, monitoring, advanced diagnostics, and visualization thanks to IO-Link

Technical overview

  • Technical data overview

    Technical data overview

    Dimensions (W x H x D)

    15.25 mm x 48.6 mm x 22.15 mm

    15.25 mm x 63.2 mm x 22.15 mm

    15.3 mm x 48.5 mm x 22.3 mm

    Light sourcePinPoint LED
    Type of lightVisible red light
    Enclosure ratingIP66 / IP67 / IP68 / IP69K / IP66 / IP67 / IP69K
    Housing materialStainless steel


    Teach-in button


All technical data can be found accompanying the individual product