Welcome to Cemtek Environmental

Industry Leaders in Emissions Monitoring for Compliance and Process Improvement

Cemtek Environmental, Inc. (CEI) is a leading supplier of custom engineered Continuous Emissions Monitoring Systems (CEMS) and provides support for compliance and non-compliance applications.


We offer our clients the full range of CEMS life‐cycle services, including:


  • One Stop Emissions Monitoring Solutions
  • Compliance CEMS
  • CEMS, Process and Ambient Hardware and Software System Design
  • System Fabrication & Integration
  • SCR Inlet and Outlet NOx
  • SO2, CO2, CO, O2, NH3, HCl Emissions and Process Monitors
  • All Emissions Monitoring Systems and Gas Analyzers
  • Operator Training and more


Cemtek has never failed to successfully complete the required certification testing for any one of its monitoring systems.


Learn more about what we do.

Latest News

Cemtek Environmental Secures More Orders, this time in Oklahoma for Dilution Extractive CEMS with Shelter

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Cemtek Environmental CEMS Replacement Project at Southern California Refinery

Full Story >>


All Cemtek News >>

Our Company

Cemtek Environmental, Inc., a division of Cemtek Group, is a leading supplier of custom engineered CEMS. With over 35 years of experience, CEI's founder and key employees are recognized leaders in CEMS development and associated life-cycle services.

Our Clients

We work both diligently and intelligently to ensure that the needs of our clients come first.  Our extensive experience enables us to tailor service specific to each sector and industry. Trust us to manage your project.  Our clients are our partners and our priority.

Our Services

CEI offers a range of services including Emissions Monitoring & Testing, CEMS equipment design, installation and support,  Data Acquisition & Handling and more.  Our Field Service Engineers will create a plan specifically tailored to your company's needs.

Superior CEMS engineering, integration and support.

We offer our clients a comprehensive range of services with leading technologies and products.  Our product packages are tailored to your facility's unique needs.  Some of the products we provide are:

Continuous Mercury

Monitoring Systems

Our engineers can solve your Mercury monitoring requirements with a custom engineered CMMS that can include a full CAA Part 75 or a Part 60 CEMS (can be added to your existing DAS or we can configure a new one).

Dilution Extractive CEMS (Custom-built)

CEI offers custom-built Dilution Extractive CEMS manufactured to your application's unique specifications. From concept to installation and continued support, we are with you every step of the way.

Tunable Diode Laser System (TDLS)

Laser based cross stack monitor for EPA Compliance

For Monitoring:

NH3, HCl, O2, CO, H2O, HCN, H2S, CO2, CH4, HF, NO, HDO, D2O