Analyzers &
Sampling Components

We understand that CEMS analyzers and sampling components are integral to your facility. At ESC Spectrum, we’re your trusted partner, offering tailored solutions that cater to a wide array of applications, including Continuous Emissions Monitoring Systems (CEMS), Process Control, Flares, Natural Gas Analysis, Combustion Control, and Gas Detection. We’re dedicated to providing you with options that not only meet but exceed your regulatory, measurement, and budgetary specifications.


With decades of expertise in analyzer repair, upgrades, calibration, and parts, we’re rooted in a profound understanding of air emissions and decades of hands-on experience with major analyzer brands. Discover some of our preferred vendor partners on our Supplier pages. 


When you choose ESC Spectrum, you’re not just buying hardware; you’re investing in performance. Every purchase of an analyzer includes comprehensive bench testing. This includes a power-up cycle, firmware updates, precise calibration, diagnostic settings checks, custom settings programming, and troubleshooting as needed.


Ready to delve deeper into the world of CEMS Analyzers? Learn more about CEMS Analyzers: What They Are and How To Maintain Them on our blog, The Source.

Analyzer & Sampling Component Hardware

CEMS & Ambient Air

Process, Flare & Natural Gas

Combustion Control

Gas Detection


Why ESC Spectrum?

We are at the forefront of innovative air emissions compliance solutions that make our customer’s lives easier.

We help customers:

  • Comply with regulatory requirements and avoid audits, inquiries, and fines
  • Save time and resources
  • Solve challenging issues no one else can

ESC Spectrum has decades of experience building high-quality CEM Systems to customers’ unique specifications. Our systems:

  • Meet the toughest monitoring challenges
  • Are built with high-quality components
  • Provide technicians with robust solutions that work and require minimal maintenance 
  • Are supported by developers, engineers, technicians, and 24/7 customer support experts

Michael is always very professional and knowledgeable.
I am always confident things will be resolved quickly with him.

Dave Patterson

Consulting Engineer (Air Quality Group), Ameren

ESC Spectrum has provided excellent engineering and procurement support.

Juan Cantu

Analyzer Specialist, ENglobal

Alex was very helpful in resolving the issues that I brought to him.

Kevin Bugay

Process Engineer, Cardinal Corporation

Even though we are only data logger users, the support staff has always been extremely nice,
very timely and completely knowledgeable on the topic at hand.

John Markely

Sr. Environmental Engineer, Kyger Creek

Very helpful, understood my issue and found the fix I needed.

Dane Ruberg

Instrument Technician, Xcel Energy

Scott is fantastic, very knowledgeable and very helpful!
Always know I am going to get the help I need when he answers the phone.

Celena Arreola

Environmental Engineer, El Paso Electric

Outstanding customer service!!!

Rick Gregory

IT Specialist/Network Admin, Calumet Specialty Partners

The customer service provided was quick and the agent sent additional information.

Ann Woods

Environmental Scientist, Agua Fria Generating Station

Excellent work!

Daniel Fefer

Contractor, Exelon

From The Source Blog

Navigating Refining Regulations: 40 CFR Part 63 Subpart CC

Learn more about National Emission Standards for Hazardous Air Pollutants from Petroleum Refineries specifically on 40 CFR Part 63 Subpart CC. This blog post outlines the steps to comply with Subpart CC and how ESC Spectrum can equip your facility to streamline emission monitoring needs.

Read More »
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