Photoelectric sensors

Your Benefits

  • Precise detection of small objects and object features
  • Detection of objects even through small openings
  • Less machine downtime due to stable VISTAL™ housing as well as the suppression of optical interference
  • The longest detection and sensing ranges in its class
  • Best-in-class background suppression for photoelectric proximity sensors
  • No blind spots, detection of shiny or transparent objects using photoelectric retro-reflective sensors
  • A wide variety of connection and mounting options
  • Highly visible light spot simplifies alignment


Precise detection of small objects and object features. Reliable for use in harsh industrial environments: The W9 photoelectric sensor family offers a wider range of solutions than ever before. It is a complete product family, including photoelectric proximity sensors as well as photoelectric retro-reflective sensors and through-beam photoelectric sensors. All sensors are equipped with the latest laser and LED technology, protected by a rugged VISTAL® housing – for even stronger mechanical resistance. The W9 range works using SICK´s SIRIC® technology; optical and electromagnetic interference is effectively suppressed in any environment. With the addition of various connection, mounting and sensing options, the W9 sensor family is the ideal solution for a variety of application needs in the automation environment.

At a glance
  • Rugged VISTAL™ housing
  • PinPoint LED or laser
  • Photoelectric proximity sensor with sensing range of up to 800 mm
  • Photoelectric retro-reflective sensors with autocollimation optics
  • Through-beam photoelectric sensors with sensing ranges of up to 60 m
  • SIRIC technology
  • Connections: M8 and M12 male connector, cable as well as cable with male connector
  • M3 and M4 hole pattern



Reliable detection for a diverse range of objects

The rugged photoelectric sensors of the W9 product family reliably detect objects and items regardless of the type or quality. The W9 achieves high sensing ranges thanks to the PinPoint LED and laser technology. The portfolio contains photoelectric proximity sensors with excellent background suppression, photoelectric retro-reflective sensors with autocollimation optics and through-beam photoelectric sensors. The W9 thereby offers the right principle of operation for any detection task.

Excellent detection properties

With the extensive detection principles, the W9 product family has a reliable sensor solution for any detection task

Extremely rugged with flexible installation

The rugged VISTAL™ housing offers very high mechanical stability and therefore high sensor availability. The use of glass-fiber reinforced plastic combined with high-performance adhesives ensures excellent housing sealing and makes it resistant to cleaning agents. The laser inscription is easy to read even if the sensor has already been in use for years.

For mounting, adjustment and connection, the W9 product family offers nearly unlimited possibilities


Technical overview

  • Technical data overview

    Technical data overview

    Dimensions (W x H x D)

    12.2 mm x 49.8 mm x 23.6 mm

    12.2 mm x 52.2 mm x 23.6 mm

    12.2 mm x 50 mm x 23.6 mm

    12.2 mm x 52.5 mm x 23.6 mm

    12 mm x 40 mm x 22 mm

    Sensing range max.

    20 mm ... 350 mm 1)

    ≤ 98 mm

    50 mm ... 175 mm 1)

    20 mm ... 500 mm 1)

    20 mm ... 100 mm 1)

    20 mm ... 800 mm 1)

    20 mm ... 200 mm 1)

    0 m ... 4 m 2)

    0 m ... 5 m 2)

    0 m ... 0.4 m 2)

    0 mm ... 290 mm 3)

    20 mm ... 600 mm 1)

    0 m ... 10 m

    20 mm ... 400 mm 1)

    0 m ... 13 m

    0 m ... 0.7 m 4)

    30 mm ... 150 mm 1)

    0.1 m ... 12 m 2)

    0 m ... 50 m

    25 mm ... 300 mm 1)

    25 mm ... 400 mm 1)

    0 m ... 12 m 2)

    0 m ... 60 m

    0 m ... 4.5 m 5)


    0 m ... 3.5 m 5)

    Light source

    PinPoint LED



    Type of light

    Visible red light

    Infrared light

    Visible blue light

    Enclosure rating




    Housing material

    Plastic VISTAL®

    Plastic ABS


    Potentiometer, 5 turns



    Single teach-in button


    Light/dark switching, switchable

    Potentiometer, 7 turns

    • 1) Object with 90 % reflectance (referred to standard white, DIN 5033).
    • 2) Reflector PL80A.
    • 3) Reflective tape REF-IRF-56.
    • 4) Reflective tape Diamond Grade.
    • 5) Reflective tape REF-AC1000.
    • 6) To ensure reliable operation, we recommend using REF-AC1000 reflective tape or reflective-tap reflectors such as P41F, PLV14-A, PLH25-M12, or PLH25-D12. Reflectors with large-scale triple structures must only be used if deemed suitable for the application.
All technical data can be found accompanying the individual product