Contrast sensors

The industry choice for high-speed and precision mark detection

Your Benefits

  • Very precise detection of print marks enables optimal results for packaging and printing applications
  • All contrast marks, even pale yellow on white paper, can be reliably detected thanks to RGB LED technology
  • Automatic drift correction helps detect difficult to see marks, such as faded print marks, enabling higher production reliability
  • Reliable operation, even with high-gloss reflective surfaces, increasing throughput
  • Simple teach-in via an external signal can be performed while the material is moving, enabling shorter setup time
  • Long-lasting, tough metal housing


The industry choice for high-speed and precision mark detection

Extremely high speeds, poor contrasts and reflective materials are no problem for the KT10-2. Ease of use is the defining feature of the second generation of the KT10. Even during the teach-in phase, the sensor selects the transmission color that best matches the existing contrast. And, the sensor adjusts itself if marks need to be detected on glossy foils. In addition, the sensor compensates for dirt build-up on lenses using automatic drift correction. The KT10-2 offers an exceptionally fast switching frequency, an easy-to-read bar graph display and 2 light exits. The bar graph display provides visible confirmation of the teach-in and can be used to monitor the sensor’s status during operation. The sensor’s two interchangeable light exits enable the KT10-2 to be mounted in more places.

At a glance
  • Very low jitter (< 10 μs)
  • Precise light spot
  • Best contrast resolution thanks to RGB LED technology
  • Two interchangeable light exits
  • Five storage banks for settings
  • Automatic drift correction
  • Fast switching frequency of 25 kHz
  • Easy-to-read bar graph display


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

    12.5 mm 1)

    Dependent on the fiber-optic cable

    10 mm 1)

    Type of light

    LED 2)


    Light spot size

    0.8 mm x 4 mm

    0.6 mm x 2 mm

    Switching frequency25 kHz 3)
    Response time20 µs 4)
    Switching output




    Dynamic teach-in (min/max)

    Static 2-point teach-in

    Connection typeMale connector M12, 5-pin
    • 1) From front edge of lens.
    • 2) Average service life: 100,000 h at TU = +25 °C.
    • 3) With light/dark ratio 1:1.
    • 4) Signal transit time with resistive load.
All technical data can be found accompanying the individual product