Contrast sensors

High-performance and tough metal housing for intelligent contrast detection

Your Benefits

  • 3-color, RGB LED for all registration mark applications – one sensor fits all
  • Tough, metal housing for long service life
  • Reliable operation, even with high-gloss reflective and jittering materials
  • Easy setup – detect all marks with one sensor


High-performance and tough metal housing for intelligent contrast detection

The KT6W-2 is a high-performance sensor with easy setup and at a competitive cost. The RGB, 3-color technology allows even the smallest marks and contrasts to be reliably detected. High-gloss reflective marks are also detected due to the sensor’s automatic gloss adjustment feature. A tough, metal housing ensures a long service life and high quality. The teach-in process is simple and easy. All key parameters, such as transmission color, light/dark switching are detected automatically by the sensor. The KT6W-2 is available in two housing versions: the light emission is located on the end or side of the device. This sensor is even more flexible thanks to its wide range of mounting options: Besides sturdy fixing holes, the KT6W-2 devices feature two additional t-sections for mounting.

At a glance
  • 3-color, RGB LED technology
  • Two-point teach-in (mark and background)
  • Tough, metal housing
  • Automatic gloss adjustment for highly reflective materials
  • 10 mm sensing distance
  • Light exits at end or side, based on model
  • Common mounting footprint


KTS and KTX - The next generation of contrast sensors

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KTX Prime

KTS Prime

KTS Core

Technical overview

  • Technical data overview

    Technical data overview

    Dimensions (W x H x D)30.4 mm x 53 mm x 80 mm
    Sensing distance

    10 mm

    10 mm 1)

    Type of lightLED 2)
    Light spot size1.5 mm x 6.5 mm
    Switching frequency5 kHz 3)
    Response time100 µs
    Switching output



    AdjustmentStatic 2-point teach-in
    Connection typeMale connector M12, 4-pin
    • 1) From front edge of protection ring.
    • 2) Average service life: 100,000 h at TU = +25 °C.
    • 3) With light/dark ratio 1:1.
All technical data can be found accompanying the individual product