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Industry-leading CEMS
Data Acquisition Systems

Join the +3100 facilities across the U.S. who trust ESC Spectrum for
air emissions monitoring and reporting

We Are a Turnkey CEMS Provider

If it's related to Continuous Emissions Monitoring Systems, we can help.

We're Your Data Acquisition System Partner

Our experienced team of experts support all our your facility's DAS needs,
including Reporting, Engineering, Regulatory and IT services.

See DAS Services

Robust and Reliable Data Controllers

We make hard-working devices that accurately and securely acquire, store and protect
your CEMS data from communications failures within your DAS system.

Total CEMS Solutions From a Single Source

We're a one-stop shop for shelters, testing, parts, repair, maintenance, and more –
everything you need to keep your CEMS system healthy and in compliance.

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Five Star Customer Support

Our products are supported by in-house, US-based, cross-trained 24/7/365 expert customer support.

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Process Control Systems & Services

Experience providing systems that meet the unique requirements of refinery and petrochemical industries.

Case Studies

StackVision Case Study

StackVision™ Case Study: Calumet Refinery

July 23, 2021

Learn how Calumet refinery used the StackVision DAS for flare monitoring and compliance with the Refinery Sector Rule (RSR).

Case_Study_pfizer_Hero

StackVision™ Case Study: Pfizer Groton

April 6, 2021

Learn how the StackVision data acquisition system (DAS) helped Pfizer Groton comply with air regulations more efficiently.

StackVision Case Study

StackVision™ Case Study: Delek-Tyler Refinery

November 24, 2020

Learn how the Delek-Tyler, TX refinery employed the StackVision Data Acquisition System to solve their complex needs and comply with RSR regulations.