Sensors for factory automation hero

LX-100 mark / colour sensor

LX-100 is a small sensor perfect for fast mark detection in the production.

LX-100 mark / colour sensor shadow

LX-100 digital mark sensor

The LX-100 series - a combined LED contrast and colour sensor - can be used both as a high-speed contrast sensor to quickly and reliably detect printer's marks, for example, and as a high-precision colour sensor.

In contrast sensing mode, the sensor automatically selects the optimum emitting LED during teach-in (static or dynamic teach-in method) from the transmitting light source (red, green and blue LEDs). With a response time of just 45µs, this sensor is perfect for high processing speeds like those required in printing presses, for example. In colour mode, an integrated microprocessor with a 12-bit A/D converter digitally processes the signals of the colour to be detected in red, green and blue primary colour components. This ensures that even the most minute colour differences or merest of tints can be accurately distinguished.


  • Three different emitting LEDs (red, green, blue)
  • High precision coaxial reflective optical system
  • High resolution 12-bit A/D converter
  • 4-digit digital display
  • Teach-in for simple settings (external teaching also possible)
  • Timer function (ON/OFF-delay)
  • Two inverse outputs(cable type)
  • Compact size
  • M12 or cable type
  • IP67


  • For connector types: 2m or 5m cables
  • Mounting brackets

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Typical applications

Mark sensor LX-100 applications
  • Tube positioning
    Detects printed marks to align tubes.
  • Mark detection
    Mark detection of packaging film.