Guided Wave specializes in the manufacturing and sale of spectroscopy equipment for online process monitoring. Successful process monitoring applications include refinery, polymer, pharmaceutical, sterilization, and semiconductor industries in the United States and internationally. Guided Wave products include system analyzers, spectrophotometers, photometers, fiber optic cables, sample probes, flow cells, spectrometers, hydrogen peroxide vapor monitors, turbidity sensors, sample capture and conditioning systems, software, and accessories.

Let us help you collect information to solve your chemical processing problems.


Acetonitrile Cleanup
Solvent Recovery
Water in Solvent Turbidity

Semiconductor Manufacturing

Phosphoric Acid
SC-1, SC-2 Cleaning Solutions
% HF in Water
Copper/Sulfuric Acid

The single source for reliable, rugged analyzer hardware

Guided Wave products provide continuous analytical monitoring of your process, delivering the data and information you need when you need it. Our product line includes optical probes and flow cells, photometers, fiber cables, full-spectrum spectrometers, sampling systems, and data analysis software, all with a two-year warranty. At Guided Wave, all products are tested in system configurations to ensure optimal transmission and full compatibility.

  • Guided Wave manufactures all of the analyzer subassemblies, ensuring consistent quality, accuracy, safety, and reliability.
  • Guided Wave systems are easy to install and service and come with assistance, training and after-installation support.
  • Guided Wave provides support for application development and feasibility studies.



Traditionally, absorption spectroscopy has been used in laboratories to perform the precise analyses of samples. recent years, as electronic circuitry and optical components have become more refined, a more robust portion of the electromagnetic spectrum—UV/VIS/NIR—has emerged for process analytics. No other technology matches the acquisition speed and the range of measurements returned by a fiber optic-based dispersive grating spectrometer. A comprehensive set of data that takes hours of laboratory analyses to acquire can be available in about a minute.
These workhorse analyzers have been field proven for almost three decades. It is typical for a Guided Wave scanning spectrometer running 24/7 to last more than 10 years with >99% uptime. The maintenance requirements are also minimal in comparison to other monitoring techniques (for example, process gas chromatographs and online titrators). The return on investment and the low cost of operation make Guided Wave analyzers a sensible and proven choice.
The power of online monitoring using NIR
In 1983 Guided Wave was recognized as an industry leader when it delivered the first fiber optic-based NIR analyzers. Today, Guided Wave is the only process NIR spectroscopy vendor that provides a complete optically matched system, yielding the best throughput efficiency and long-term performance that exceeds industry standards.
The team at Guided Wave is accessible and responsive, offering insightful solutions to your application questions, innovative designs, expert technical support, and knowledgeable service. ISO 9001 certified, Guided Wave maintains global support and certified technical distributors worldwide. We stay with you through the lifetime of the product to ensure you get better data for better decisions.