Products  Kaiser Raman Probes   Kaiser RamanRxn probe

Kaiser RamanRxn probe

A versatile probe for your Raman spectroscopy needs

Designed for product and process development, the RamanRxn probehead is the workhorse of the Kaiser Raman probe portfolio. It is trusted to deliver high performance Raman measurements across a wide spectral range. It is also compact, lightweight, and flexible, offering multi-purpose convenience for both solids and liquids analysis in the laboratory environment. The RamanRxn probehead accepts a variety of interchangeable optics which makes it a highly versatile and easily adaptable instrument in your laboratory toolbox.

  • Non-contact optic – for use with solids or turbid media or when sample contamination is a concern
  • Immersion optic – for use in reaction vessels, laboratory reactors, or process streams
  • bIO-Optic – for use with continuous inline measurement in benchtop bioreactor/fermentor applications requiring headplate entry
  • SUB Optic – for use with disposable fittings for single-use bioreactors
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Additional Components

Kaiser Raman Rxn2 Analyzer view from front left corner

Kaiser Raman Rxn2

Raman analyzer bridging laboratory analysis to the process environment

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Immersion Optics

Kaiser Raman immersion optic

Fixed focus design provides long-term measurement stability along with superior signal performance

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Kaiser Non-contact optics

Kaiser Raman non-contact optics

Superior non-contact optics that protect samples and avoid contamination

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  • Multipurpose use for both solids and liquids measurement
  • Lightweight and compact
  • Integrated laser safety interlock, including “laser on” indication and remote shut-off
  • Flexible output compatible with a range of sampling options
  • Easy switching of non-contact, immersion, and bioprocessing optics to suit a variety of applications
  • Wide spectral range, including access to a critical low-wavenumber region

Field of Application

  • Chemical: reaction monitoring, blending, catalysis, hydrocarbon speciation, process unit optimization
  • Polymer: polymerization reaction monitoring, extrusion monitoring, polymer blending
  • Pharmaceutical: API reaction monitoring, crystallization
  • Biopharmaceutical: cell culture and fermentation monitoring, optimization, control
  • Food & Beverage: zonal heterogeneity mapping of meats and fish

Features and Specifications

Measuring principle

Laser wavelength
532 nm, 785 nm, 1000 nm

Spectral coverage
150-4350 cm-1 (532 nm)
150-3425 cm-1 (785 nm)
200-2400 cm-1 (1000 nm)

Maximum laser power into probe head
<499 mW

Sample interface

-10° to 70°C

Relative humidity:
20-60%, non-condensing

6061 Aluminum, 316L stainless steel, and 303 stainless steel

Fiber optic cable
Design: PVC jacketed, proprietary construction
Connections: proprietary electro-optic
Temperature: –40 to 80°C
Length: 5m standard (alternate lengths available in 5m increments up to 50m). Contact us for custom lengths.
Minimum bend radius: 152.4 mm (6 inches)

Length (mm)

Diameter (mm)

Documents/ Manuals/Software


Application Notes:

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IFPAC-2021 (February 28 – March 5, 2021)

Join us for our three virtual presentations at IFPAC-2021:

March 1st at 1-5:30 PM EST – SmartRaman spectroscopy for automated monitoring and control of industrial processes

March 2nd at 1-5:30 PM EST – Tips and tricks to make process Raman spectroscopy a success

March 4th at 7:45-11:00 AM EST – Raman spectroscopy for automated monitoring and control of bioprocesses

Register today

bIO-PRO KS 785 Installed Lab with operator


2020 Pharma Innovation Award

Our Kaiser Raman bIO-PRO, KS bioprocessing probe was recently selected as a 2020 Pharma Innovation Award winner by Pharma Manufacturing Magazine!

The Kaiser Raman bIO-PRO, KS probe provides fast, accurate measurement of key bioprocess variables from lab-to-process. It is an exciting advancement in our already well-established Kaiser Raman bioprocess product portfolio.

Read the award announcement

Pittcon 2021 virtual conference


2021 Pittcon Conference & Expo (March 8-12, 2021)

Join us during our two virtual presentations at the 2021 Pittcon Conference & Expo:

March 8th at 1:30 PM EST – The Role of Process Raman Spectroscopy in Chemical and Polymer Applications

March 12 at 9:30 AM EST – Analytical Model Development for Raman Spectroscopy of Pharmaceutical Solids Processing and Upstream Bioprocessing

Register today