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CEMS Manufacturers

EmiDAS and CEMWindows can interface with analysers manufactured by companies all over the world.
This page lists a number of companies that manufacturer CEMS Systems and analysers all of which can integrate with G2 Data Systems software.



ABB was established in 1988 with a revenue of in excess of US$27 billion (2019). ABB operates globally and focuses in robotics, power, heavy electrical equipment and automation.
Emissions monitoring is offered under the ‘Measurement and Analytics’ business area and operates in:-

  • CEMS for coal, gas, biomass and waste fired plants
  • CEMS for steel making and cement, including combustion of waste and biomass
  • CEMS for fired heaters, SMRs and steam boilers. Combustion and general process control gas analysers

For software to operate with ABB Analysers see CEMS Software

Chemtrols Industries

Chemtrols Industries was established in 1975 and provides solutions including:-

  • Ambient Air Quality Monitoring Systems
  • Continuous Emission Monitoring Systems
  • Flow Metering
  • Gas Detection
  • Process Analytics

Industries serviced include:-

  • Cement
  • Chemicals
  • Fertilizer
  • Oil & Gas
  • Paper & Pulp
  • Petrochemicals
  • Power
  • Steel
  • Textile

For software to operate with Chemtrols Analysers see CEMS Software


CODEL was established in 1982 to manufacture gas monitors and in 2014, joined with Forbes Marshall Group.
CODEL operates in a variety of areas including:-

  • Stack Emission
  • Tunnel Monitoring
  • Ambient Air Monitoring
  • Process Control

Products to monitor emissions in these areas include:-

  • Flow Monitors
  • Gas Monitors
  • Dust Monitors
  • Visibility Monitors
  • Air Quality Monitors
  • Single Point Flow Monitors
  • Electrochemical Cell Air Quality Monitors
  • Light Monitors
  • Cross Tunnel Flow Monitors

For software to operate with CODEL Analysers see CEMS Software

Dr Fodisch

Dr Fodisch was established in Germany in 1991 and manufacturers CEMS monitoring solutions for air pollutants, dust and flow.
Dr Fodisch continuous emissions monitoring solutions operate in a variety of industries including:-

  • Biomass
  • Cement
  • Chemical
  • Metallurgical
  • Power
  • Waste incineration

For software to operate with Dr Fodisch Analysers see CEMS Software

Durag Group

Durag was founded in 1948 in Germany and now operates worldwide in the following areas:-

  • Combustion technology
  • Emission measurement
  • Ambient air measurement
  • Gas analysis
  • Tunnel sensors
  • Environmental data management
  • Process data management

For software to operate with Durag Analysers see CEMS Software

Ecotech (ACOEM)

Ecotech was established in 1976 in Australia and in 2017 merged with ACOEM which was established in 1996 in France and specialises in reducing the environmental impact from:-

  • Noise and vibration pollution
  • Air quality
  • Industrial machines

Ecotech specialises in the following environmental monitoring product areas:-

  • Air monitoring
  • Water monitoring
  • Gas monitoring
  • Blast monitoring
  • Dust monitoring

For Air Monitoring applications sold include:-

  • Ambient Air Quality Monitoring Systems
  • Continuous Emissions Monitoring Systems
  • Background Air Quality Monitoring Systems
  • Tunnel sensors

For software to operate with Ecotech Analysers see CEMS Software

Emerson Electric

Emerson was established in 1890 and focussed on building Electric motors. Since then, Emerson has grown into a multi-billion dollar company with over 85,000 employees. The Automation division is responsible for their Emission Monitoring Systems using the Rosemount brand following the acquisition of Rosemount in 1976.
Emerson / Rosemount operates in the following industries:-

  • Chemical
  • Marine
  • Metals & Mining
  • Oil & Gas
  • Packaging
  • Petrochemical
  • Pharmaceutical
  • Power
  • Refining
  • Water & Wastewater

Emerson / Rosemount products offer the measurement and analysis of:-

  • Flow
  • Pressure
  • Density - Viscosity
  • Liquid Analysis
  • Gas Analysis
  • Temperature
  • Flame and Gas Detection
  • Tank Gauging
  • Corrosion & Erosion Monitoring
  • Flow Measurement & Blending Systems
  • Marine Measurement Analysis

For software to operate with Emerson Analysers see CEMS Software


Envea was established in 1978 to develop instruments that would automatically measure atmospheric pollution. In 2014, Envea acquired PCME who specialise in the manufacture of equipment for particulate measurement in industrial environments. In 2016, Envea acquired TDL Sensors Ltd who specialise in the development of high-resolution laser gas analysers.
Envea operates in the following areas:-

  • Biomass
  • Boilers & industrial furnaces
  • Cement plants
  • Chemical
  • Combustion
  • Gas turbines
  • Glass industry
  • Metal
  • Petrochemical
  • Power plants
  • Process control
  • Pulp mills
  • Waste-to-energy plants

Envea produces equipment that specialises in:-

  • Gas Monitors
  • Particulate CEMS
  • Mercury Instruments
  • Permanent Samplers
  • Flue Gas Velocity CEMS

For software to operate with Emerson Analysers see CEMS Software

Forbes Marshall

Forbes Marshall was established in India in 1926 to supply steam equipment to the textile industry.
In 2007, Forbes Marshall joined with CODEL to manufacture emission monitoring systems such as:-

  • Gas flow monitors
  • Dust monitors
  • Insitu Gas Analysers
  • Coal Mill Analyser

Forbes Marshall operates in a wide range of industries such as:-

  • Cement
  • Chemical
  • Concrete
  • Fertilizer
  • Food
  • Oil & Gas
  • Paper & Board
  • Pharmaceuticals
  • Power
  • Rubber
  • Solvent Extraction
  • Steel
  • Sugar
  • Textiles
  • Water & Wastewater

For software to operate with Forbes Marshall Analysers see CEMS Software

Fuji Electric

Fuji Electic was founded in Japan in 1923 and specialises in the manufacturing of pressure transmitters, flowmeters, gas analysers, controllers, inverters, pumps, generators, motors, and power equipment.
For emissions monitoring, this incudes:-

  • Gas Analysers
  • Ultrasonic Flowmeters
  • Temperature Controllers
  • Pressure Transmitters
  • Level Transmitters

For software to operate with Fuji Electric Analysers see CEMS Software


Gasmet was founded in 1990 and expanded into the CEMS (FTIR) industry with the acquisition of Scanoptics.
With the additional acquisition of Quantitech, Gasmet manufacturers portable and fixed gas analysers (FTIR, TLD, CVAF) which are used withing a variety of areas including:-

  • Aluminium Production
  • Carbon Capture & Storage (CCS)
  • Cement
  • Fertiliser and Nitric Acid Production
  • Power Plants
  • Raw Gas Measurements
  • Small Waste Incineration
  • Stack Testing
  • Waste Incineration

For software to operate with Gasmet Analysers see CEMS Software

General Electric

General Electric was founded in 1892 and operates in the CEMS industry via its ‘Air quality and pollution control services’ division focusing on services to manage SOx, particulate matter (PM) emissions and nitrogen oxides (NOx).

For software to operate with General Electric Analysers see CEMS Software


Horiba was founded in Japan in 1953 and operates in a variety of areas - one of which is environmental. This covers the following industries:-

  • Biomass Power Generation
  • Industrial and Medical Gases Production
  • Iron and Steel Production
  • Oil Refinery
  • Petrochemical Industry
  • Thermal Power Generation
  • Waste to Energy Power Generation

For software to operate with Horiba Analysers see CEMS Software

Land Ametek

AMETEK was founded in 1930 and the emissions industry is serviced by the Process & Analytical Instruments Division .
In 2006, AMETEK acquired Land Instruments International (AMETEK Land) to manufacture industrial sensors and measuring devices such as:-

  • Fixed Spot Non-Contact Thermometers / Pyrometers
  • Fixed Thermal Imagers and Line Scanners
  • Portable Non-Contact Thermometers
  • Portable Gas Analysers
  • Opacity and Dust Monitors
  • Carbon Monoxide Detectors

These technologies operate in the following industries:-

  • Steel
  • Aluminium
  • Speciality Metals
  • Glass
  • Hydrocarbon Processing (HPI)
  • Minerals
  • Power Generation

For software to operate with Land Ametek Analysers see CEMS Software


OPSIS is a Swedish company which was founded in 1985 and operates in the gas analysis and process control markets covering ambient air quality monitoring (AQM) and continuous emissions monitoring (CEM).
OPSIS operates in the following industries:-

  • Aluminium
  • Brick
  • Cement
  • Chemical
  • CO2 Capture
  • Fertiliser
  • Glass Manufacturing
  • Mercury Monitoring
  • Mineral Wool Production
  • Mining & Smelting
  • Palm Oil
  • Power
  • Steel
  • Sulphuric Acid Production
  • Waste to Energy

For software to operate with Opsis Analysers see CEMS Software


Protea was founded in 1996 and specialises in the manufacture and sale of Continuous Emission Monitoring Systems (CEMS) and process analyser systems.
Protea manufactures extractive and in-situ analysers using a variety of techniques such as:-

  • Infrared (IR)
  • Fourier Transform Infrared Spectroscopy (FTIR)
  • Ultra Violet (UV)
  • Tuneable Diode Laser (TDL)
  • Mass Spectrometry (QMS)

The Protea products are found in a variety of industries including:-

  • Aluminium
  • Automotive
  • Biogas
  • Cement
  • Chemical
  • Fertiliser
  • Glass
  • Incineration
  • Landfill
  • Marine
  • Paint
  • Pharmaceutical
  • Pulp / Paper
  • Refineries
  • Steel

These industries are serviced by the following products:-

  • atmosFIR Range (Fourier Transform Infrared (FTIR)
  • P5000 (UV Diode Array)
  • ProMass (Quadrupole Mass Spectrometer)
  • IR Photometer P2000 and P300 (Selective Analyser Technology)
  • Solus Range (Tuneable Diode Laser)

For software to operate with Protea analysers see CEMS Software

Sick AG

Sick AG was founded in Germany in 1946 and manufactures a wide variety of sensor solutions for industrial applications.
Having operated in the UK since 1973, Sick supports multiple industries such as:-

  • Biomass
  • Building materials
  • Chemicals
  • Energy from waste
  • Mining
  • Petrochemicals
  • Power
  • Refineries
  • Waste and recycling

For software to operate with Sick AG Analysers see CEMS Software


Siemens AG was established in Germany in 1847 with the Process Analytics division being responsible for the manufacture of CEMS Systems. Solutions offered include cold-extractive, hot-extractive, and in-situ automated monitoring systems.

For software to operate with Siemens Analysers see CEMS Software


Teledyne Monitor Labs (TML) was founded in 1969 and specialises in the continuous emission monitoring industry (CEMS) offering solutions in industries including:-

  • Agriculture
  • Cement
  • Chemical
  • Lime
  • Oil/Gas Refining
  • Paper
  • Petrochemical
  • Power Generation
  • Pulp
  • Steel

  • Technologies used include:-

    • Continuous Real-time Particulate Matter Mass Monitoring
    • Flame Ionization Detector
    • Chemiluminescence
    • UV Absorption
    • Non-Dispersive Infrared (NDIR)
    • Ultraviolet (UV) Fluorescence

For software to operate with Teledyne Monitoring Labs Analysers see CEMS Software

Thermo Fisher

Thermo Fisher Scientific was founded in 1956 in the USA and manufactures scientific instrumentation which is used for Continuous Emissions Monitoring.
Thermo Fisher Scientific products are capable of measuring a variety of emissions including:-

  • SO2 (Sulfur dioxide)
  • NOx (Nitric oxide)
  • CO (Carbon monoxide)
  • TRS (Total Reduced Sulfur)
  • NH3 (Ammonia)
  • HCl (Hydrogen chloride)
  • THC (Total Hydrocarbons)
  • HG (Mercury)
  • O2 (Oxygen)
  • PM (Particulate Matter)
  • H2S (Hydrogen Sulfide)
  • Flow
  • Opacity

For software to operate with Thermo Fisher Analysers see CEMS Software


Valmet was established in Finland in 2013 (following a demerger with the Metso Corporation) and focuses on automation systems and services for the energy, pulp and paper industries.
Valmet provides solutions across a variety of industries including:-

  • Alternative fuels
  • Biofuels and biomaterials
  • Chemical
  • Fibreboard
  • Filtration
  • Marine
  • Minerals and metals
  • Oil and gas
  • Paper
  • Petrochemical
  • Pharmaceutical
  • Wastewater

For Continuous emission monitoring and reporting Valmet offers products for:-

  • Waste incineration plant emission monitoring
  • Large combustion plant emission monitoring
  • Quality assurance for CEMS analysers
  • CO2 Monitoring

For software to operate with Valmet Analysers see CEMS Software