This product family will be phased out soon

Photoelectric sensors

Your Benefits

  • High cost savings since development or mounting of a protective housing is not needed. Entire sensor including cable is Teflon-coated so it can be placed directly in the process.
  • Less machine downtime due to a long sensor life that withstands even the most aggressive cleaning and process agents


The W4-3 photoelectric sensors in a Teflon® shell coating are resistant to harsh chemicals. Both the housing and cable are Teflon coated, making them ideal for wet, harsh environments in the food and beverage industry.

At a glance
  • Sensor and cable have a rugged Teflon coating for use in the most aggressive environments
  • Suitable for use in the food and beverage industry
  • Sensing range set via teach-in cable
  • Available as background suppression and through-beam system

Technical overview

  • Technical data overview

    Technical data overview

    Dimensions (W x H x D)22 mm x 42 mm x 21.8 mm
    Sensing range max.

    4 mm ... 120 mm 1)

    0 m ... 3 m

    Light sourcePinPoint LED
    Type of lightVisible red light
    Enclosure rating



    Housing materialPTFE coating PTFE
    AdjustmentCable / none
    • 1) Object with 90 % reflectance (referred to standard white, DIN 5033).
All technical data can be found accompanying the individual product