Four Decades of Leading-Edge Analysis

For more than 40 years, California Analytical Instruments, Inc. has produced the highest-quality gas analyzers and emission-monitoring systems for Industrial, Environmental, Process and Automotive applications. Bottom line: our instruments can accurately measure just about any gas.

At CAI, we offer far more than mere technology. Our customer support is simply the best in the business.

With 30,000 analyzers in the field – and thousands of customers – CAI is uniquely equipped to deliver optimal solutions for a variety of analytical needs, including yours. Contact us today.



With over 30,000 analyzers in the field, CAI is the most trusted name in gas analysis and emission monitoring. Here's why


Contact Us



The 700 Series FTIR delivers fast, accurate analysis of virtually any gas with an infrared absorption spectrum.

Read More


  • "I am SO IMPRESSED! This is the most wonderful news. Thank you and all of CAI for your support on this. I will never forget the extra effort you went through to get this turned around so fast. Thank... read more"

    Tom Jerrell, President - BTR

  • "I would just like to take this opportunity to thank you for an absolutely outstanding job in fixing our gas analyzer last week. You fully recognized our urgent need and went above and beyond to sur... read more"

    Andrej Nikolic, Operations Manager - Intertek

  • "I just wanted to tell everyone involved at California Analytical Instruments that I appreciated your efforts in getting our analyzer to us, along with a couple of others that were on a tight schedu... read more"

    Leonard Baughman, Technical Support Manager - Monitoring Solutions

  • "From the very first contact PACE Environmental Products made with CAI while searching for the company we would use for our analyzer needs, CAI was at all times, extremely efficient, knowledgeable, ... read more"

    Damian Gaiotti, Sales Manager - PACE

  • "We received, and have put the new CO analyzer into service. It is working flawlessly; as the other infrared analyzers from your company have over the last five years. Thanks for your help. I'll loo... read more"

    Drew Galloway, Materials Engineer - TDA Research, Inc.

  • "As a full service CEM provider we rely on quality components & California Analytical has come through time & again with top shelf analyzers and great service that we can depend on. We are very plea... read more"

    Jim Toolen, Sales Manager - Trace Environmental Systems