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Leuze Lumiflex

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Leuze Lumiflex

This sensor type can use various light sources - such as white light, laser-generated red light or RGB light - to very precisely detect and compare contrasts and report the results to the process with minimal signal jitter. Through the automatic selection of the right transmitter colors, various color or gray value combinations can be reliably detected.

Leuze KRTW 3B White Light Contrast Sensors Distributors

KRT 3B Series

The contrast scanners of the KRT 3B series distinguish between grayscale values, enabling them to detect minimal contrasts. As a result, a check can be performed for the presence of text or imprints or so-called marks detected.

  • Scanning range 14.5 mm/ 60 mm (laser)
  • Multicolor (RGB), white or laser light
  • Various teach-in processes
  • Switching-threshold correction via EasyTune
  • Min. response time 50 µs
  • Switching frequency up to 10 kHz
  • Pulse stretching
  • IO-Link interface

If you are looking for Leuze Contrast Scanners, please call us at (800) 894-0412 or email us at we will do our best to help you find the Leuze KRT 3B sensor that you are looking for at the most competitive prices possible. If you are searching for Leuze KRT 55 scanner technical information (data-sheets) please use the datasheets or product selection guide page links.

Leuze KRT 18B Multicolor Contrast Scanner Distributor


In many packaging processes, contrast marks must be reliably detected on film, bag and blister packaging or on labels. The KRT 18B contrast sensor combines ease-of-use via permanent signal indicators with high performance.

  • Multicolor (RGB)
  • Models with teach buttons and potentiometers
  • Self-adjusting bar graph for signal display
  • Multiple stored configurations via IO-Link
  • Automatic sensitivity readjustment
  • Nickel-plated metal housing
  • Switching frequency up to 15/22kHz
  • Degree of protection IP67 and IP69K with ECOLAB
  • Scanning range 13 (+/-3) mm
  • Response time 20/30 µs
  • Adjustment without tool

Leuze KRTM 55 Multicolor Contrast Scanners Distributors

KRT 55

Wherever food, beverages, pharmaceutical products or even cosmetics are manufactured, processed and packaged, hygienic design has become a central requirement.

These contrast scanners in WASH-DOWN design can withstand even more intensive cleaning and disinfection cycles. The IO-Link interface facilitates simple adaptation to complex applications.

  • Stainless steel housing AISI 316L
  • Scanning range 13 mm
  • RGB or white light
  • Various teach-in processes
  • Switching-threshold correction via EasyTune
  • Response time 50 µs
  • Switching frequency 10 kHz
  • Pulse stretching
  • IO-Link interface

Leuze KRTM 20 RGB Contrast Sensor Distributor

KRT 20 Series

With jitter times <7 µs, with precise, round and small light spots, with memory bank administration and freely programmable interface, with perfect temperature compensation, these devices in a robust metal housing can handle even the fastest processes.

  • Metal housing with interchangeable lenses
  • Scanning ranges of 12/20 mm and 50 mm
  • Very high resolution
  • Response time 10 ms
  • Switching frequency 50 kHz
  • Switching and analog output
  • Temperature compensation
  • Pulse stretching
  • Switching-threshold changeover
  • Freely programmable
  • Rectangular or round light-spot profile

Leuze KRT 21 Multi Color Contrast Scanners Distributors

KRT 21

With a response time of 33 µs, RGB transmitter, interchangeable lenses and other fundamental equipment details, any contrast marks are reliably detected. The simple adjustment to mark and background makes for uncomplicated commissioning.

  • 9 mm or 18 mm scanning range
  • Interchangeable lenses made of glass and plastic
  • Multicolor (RGB) transmitter
  • Static teach-in
  • Response time 33 µs
  • Switching frequency 15 kHz
  • Pulse stretching

In many areas, the fast and reliable detection of gray value differences on a wide range of surfaces is of decisive importance. Operating on the reflection principle, these sensors detect even the smallest differences and, with the simple teaching process and their unique additional features, such as YellowBoost for preventing the "yellow hole" and the innovative EasyTune for intuitive fine adjustment of the switching threshold, are the most efficient and reliable choice.

Our industrial factory automation supplies distributors warehouse stocks some Leuze Electronic products enabling us to further assist you in finding the correct KRT 20 scanner in the USA, Canada, or Mexico. It will be very helpful if you have the Leuze Electronic KRT 3B sensor part numbers ready, then our sales representatives can provide you with a pricing and availability quote for Leuze KRT 55 scanner that you are looking for in seconds. If you do not have the part numbers for Leuze Electronic KRT 20 contrast sensors, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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Danfoss Filters

With VLT MCT 31, you can determine whether harmonics will be an issue in your installation when drives are added. VLT MCT 31 estimates the benefits of adding various harmonic mitigation solutions from the Danfoss product portfolio and calculates system harmonic distortion. Furthermore the software provides quick indication of whether the installation complies with the most recognised harmonic norms and recommendations.

Datalogic Sensors

The TL46-W Basic Version with 2 set push-buttons and 2 LEDs indicator, TL46-WL standard version has set 3 push-buttons, 4 LEDs indicator and bar graph is also available for manual setting of the threshold and TL46-WLF enhanced version presents a 4-digit display for the setting of the most advanced functions, such as dynamic acquisition of the contrast mark. The sensor reaches the maximum market performances at 30kHz switching frequency.