We have decades of experience building high-quality
CEM Systems to customer’s unique specifications.

ESC Spectrum designs and tailors CEM Systems to meet the toughest monitoring challenges.

We construct CEMS in compliance with Environmental Protection Agency, state, and local regulations based on an in-depth knowledge of the process, monitoring and ancillary hardware, control system, and reporting software requirements involved.

Our expertise in dilution, extractive, in-situ, and hybrid CEMS ensures systems that surpass expectations.

We consider your permit, process, and space requirements to provide a unique system that is within budget, tested, and proven.

New CEMS Shelters

We are experts in Process Control CEM Systems.

ESC Spectrum can solve challenges specifically related to designing a Process Control Monitoring System. We design systems tailored to accommodate monitoring locations located upstream of control devices in stratified and heavy particulate-laden gas streams.

We include PLC interfaces in the design of the system to ensure that real-time monitoring data is fully integrated.

ESC Spectrum Process Control CEMS

We create technician-friendly, state-of-the-art mobile testing CEM Systems.

Mobile testing systems operated by stack testers and process optimization teams can present design challenges. These challenges are best understood by a system integrator with employees actively engaged in testing activities.

We handcraft each mobile system and include multiple options for power, lighting, HVAC, shelving and storage, weight requirements, flooring, and testing analyzer configuration.

Each mobile testing trailer is built with high-quality components, ensuring long life with minimal maintenance. The trailer layout is optimized for ease of use so technicians can complete their work as efficiently as possible.

ESC Spectrum CEMS Mobile

We provide a full suite of CEMS services to support your systems.

ESC Spectrum offers total CEMS solutions from a single source. We are a turnkey provider for shelters, parts, repair, maintenance, and more – everything you need to keep your CEM system healthy and in compliance.


Our full suite of CEMS services includes:


ESC Spectrum CEMS Training

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

Case Studies