Phone: (281) 516-3950 OR (713) 462-6116 || Fax: (281) 351-8925 || E-mail:

  • Cost Effective

    Our analyzers can save clients hundreds of thousands of dollars in losses.

  • Precise

    To reassure every user, we ensure precision in all of our products.

  • Field Proven

    Our products are preferred by companies like Saudi Aramco and Shell.

  • Leading Manufacture

    We've provided process and laboratory analyzers worldwide for over 26 years.

Manufacturing Liquid and Gas Analyzers Since 1984

Analytical Systems International Keco has provided field-proven, continuous on-line process and laboratory analyzers for refineries, chemical plants, gas processing plants and other industries world wide for over 26 years. These highly dependable and trouble-free products include H2S in liquids analyzers (water, crude, amine, diesel, gasoline & naphtha), Hydrocarbon (VOC) in Water analyzers, Oil in Water monitors, and hydrogen sulfide (H2S), carbon dioxide (CO2) and Total Sulfur gas analyzers. Analytical Systems also provides full support for Houston Atlas Tracor analyzers including detect cassette and H2S sensing tapes for most H2S and Total Sulfur analyzers.

Company Overview

Since 1984, Analytical Systems has maintained leadership in providing field-proven analyzers to major oil & gas companies, ensuring every process maintains high efficiency.

Liquid & Gas Analyzers

Our field-proven analyzers are custom designed, manufactured and calibrated based on client's specific application and specifications.

Our analyzers are field proven...

Convinced of our commitment to quality and performance, both Shell Global and Saudi Aramco, among others, have designated Analytical Systems Int'l. as their Preferred Vendor.

See what our clients are saying...

Since 1984, ASI has worked with refineries, chemical and gas processing plants and other industries worldwide. See the results these companies yield from utilizing our products.