Backscatter probes

Kemtrak backscatter probes are designed to accurately measure low to extremely high turbidity directly in tanks and pipelines.

The dual fiber optic design of the Kemtrak probe provides high resolution at low turbidity ranges with excellent linearity all the way up to extremely high turbidities when used with a Kemtrak NBP007 backscatter photometer.

A unique benefit of the Kemtrak backscatter immersion probe is that it does not go blind at high sample turbidities. Other probes stop working at 4 000 NTU/FNU (< 1 wt% solids) after which the signal will decrease resulting in an erroneous and misleading output. The output of the Kemtrak probe will continue to increase with sample concentration ensuring a reliable measurement.



The compact design of the immersion probe makes the instrument suitable for both laboratory bench top work and the most process installations.



  • Crystallization control
  • Cell Culture monitoring
  • Interface detection
  • Concentration & solids measurement
  • Product differentiation


  • 0.0005% (10 NTU) to 100% solids
  • Real time, in-line measurement
  • Two Robust hygienic designs:
  • 1″/DN25 TriClamp
  • Ø12mm PG13.5 (pH probe style)
  • Designed for CIP processes
  • Suitable for hazardous area use


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