Products  Kaiser Raman Probes   Kaiser Raman AirHead probe

Kaiser Raman AirHead probe

Providing reliable, quantitative gas-phase measurements in a process environment

The Kaiser Raman AirHead probe has cross-industry appeal for its robust gas-phase headspace monitoring, in situ measurements, and material compatibility. In chemical processes, it successfully addresses common gas / vapour phase process application challenges such as corrosivity, wetness of the sample environment, and low sensitivity of analyzer technology. Food & Beverage companies rely on its ability to accurately measure gas-phase volatile organics during sugar fermentations.

Certified for use in hazardous area environments, the AirHead probe can be inserted directly into processes with temperatures up to 150 degrees Celsius and pressures up to 1,000 psi, and it is available with a variety of mounting options for maximum installation and sampling flexibility.

Let’s Talk

Additional Components

Optograf Gas Analyzer front view

Kaiser Raman Optograf analyzer

Industry-leading, turn-key, laser-based process analyzer

Read more

Kaiser Raman Rxn4 analyzer front

Kaiser Raman Rxn4

Process Raman analyzer ensuring 24/7 process and quality monitoring

Read more

Kaiser Raman Rxn2 Analyzer view from front left corner

Kaiser Raman Rxn2

Four channel Raman analyzer bridges laboratory analysis to the process environment

Read more


  • Reliable, quantitative gas-phase measurements
  • In situ measurement/no transfer lines or fast loops required
  • Can be directly inserted into processes with temperatures up to 150°C and 1,000 psi
  • Industry standard installation options
  • Direct insertion, side insertion, or sample loop
  • Suitable for hazardous area/classified environments

Field of Application

  • Chemical: ammonia, methanol, HyCO, reaction monitoring, blending, catalysis
  • Polymer: polymerization reaction monitoring
  • Pharmaceutical: API reaction monitoring, drying
  • Gas-phase streams in refining: hydrogen production and recycle fuel blending, fuel characterization
  • Power & Energy: IGCC power plants, gas turbines
  • Food & Beverage: fermentations, offgas, volatiles

Features and Specifications

Measuring principle

Laser wavelength
532 nm

Spectral coverage
150-4350 cm-1 (532 nm)

Maximum laser power into probe head
<499 mW

Sample interface
Operating temperature, probehead: -20 to 150°C
Temperature ramp: < 6°C/min
Pressure at probehead: up to 1000 psi

Fiber optic cable
Design: PVC jacketed, proprietary construction
Connections: proprietary electro-optic at analyzer
Temperature: -40 to 80 °C
Length: 5000 mm (16.4 ft) standard, custom lengths available
Minimum bend radius: 152.4 mm (6 in)

Gas stream filtration
Filtration: 1 micron or better (multistage filtration recommended)

Hazardous area certifications
ATEX, North American, IECEx

Documents/ Manuals/Software


Application Notes:

Globe with pills white background and blue


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