Opsis AB is the leading supplier of open-path monitoring systems for air quality monitoring, continuous emissions monitoring (CEM) and process control. Opsis offers total monitoring solutions and the product line includes both monitoring hardware and data handling software. The DOAS technology, developed by Opsis, has received international approvals and provides customers with reliable system solutions for a number of applications.

About Us


OPSIS AB is a globally present company that develops, manufactures and markets state-of-the-art, innovative systems for gas analysis and process control. Our goal is to provide our clients with a total monitoring solution, including reliable and cost-effective systems, regardless of applications. Systems are available for ambient air quality monitoring (AQM) and continuous emissions monitoring (CEM)/process control. Thousands of our systems are running worldwide. By focusing on our customers’ requirements and on continuous research and development, OPSIS continues to lead the way and set the standard in gas monitoring.

Being an international company, OPSIS is represented on all continents. A network of subsidiary companies, distributors and other representatives, has been established, that are among the most competent and experienced organisations in each of the countries where they are operating.

To ensure that operators get the best results, we provide thorough training courses for successful monitoring operation, calibration and maintenance. The courses are custom-designed in order to suit each operator’s needs and requirements. Also, we continuously arrange technical training courses for our distributors and representatives in order to guarantee thorough knowledge about our monitoring systems.


  • Provide monitoring data with lowest possible environmental impact
  • Provide monitoring data with certified quality
  • Provide more monitoring data at less cost


Opsis - Model 400CS - Cross-Stack System

OPSIS System400CSSystem400CS Cross-Stack system is based on Opsis UV/FTIR DOAS system giving fast response and best possible performance for all gases. The System400CS is based on a non-contact method, using an optical measurement path that operates across the duct.

Opsis - Dilution Compact Analysers

Opsis offers compact analyser packages for monitoring NOX, SO2, CO and O2 in many different kinds of stack gas applications.


Continuous emissions monitoring for glass manufacturing

Process control and emissions monitoring in a glass manufacturing plant is a challenge due to high temperature in the flue gas. The OPSIS DOAS system provides the glass industry with an accurate analyser that will operate with a minimum of maintenance. The OPSIS DOAS system is based on a non-contact method that uses an optical path to measure across the duct.

Tunnel monitoring

Car tunnels need ventilation in order to keep air pollution below the limits. When the pollution levels reaches a setpoint, the fans must be started and kept running until the pollution levels decreases.


OPSIS - EnviMan Cloud

To run a computer server can be complicated and costly. The OPSIS EnviMan Cloud moves the data handling outside of the IT department. We simply run the customers’ servers at OPSIS. The customer can log in via the web and access the data and calculations. We take care of the IT infrastructure, updates, etc. The customer can focus on the data.

System Installation and Integration

Software and hardware installations of OPSIS products are common tasks for OPSIS engineering staff and for all of our distributors. We have been in the business for many years and we know how to manage this in a professional way and with maximum convenience for our customers. As a customer, if you allow us to perform the installation you do not only purchase a system, but you also get trouble-free deployment and reliable operation.


EnviMan Mapper

Geographic information is vital for environmental simulation and planning. This information is used to locate as well as to extract information about emission sources. Topography, land use information is also important when applying the simulation models in the EnviMan family. Finally, when presenting results from simulations, it is important to be able to alter map information in such a way that the complex pattern of the results can be displayed and ...

EnviMan IOManager

The EnviMan IOManager software is used together with EnviMan ComVisioner. IOManager provides two main functions: It serves as a datalogger, capturing data at its inputs at specified times, and forwarding this data to ComVisioner. In ComVisioner, IOManager is known as a local datalogger. It receives data from ComVisioner, and forwards it to its outputs.



Although OPSIS product offers are state-of-the-art, they are never better than the humans interacting with them; whether at installation, maintenance or just regular use of them. OPSIS has therefore developed multiple training programmes under which both distributors’ staff and end customers can obtain both theoretical and practical knowledge about OPSIS’ offers.


14th Annual EUEC 2011 - Energy, Utility & Environment Conference & Expo, Air & Waste Management Association’s Annual Conference & Exhibition (ACE) 2012, Eco-Tech / Process & Miljöteknik 2006, ET 2010 (Environmental Technology 2010), POLEKO 2011, Pollutec Horizons 2011


Company details

Business Type:

Industry Type:
Air and Climate - Air Monitoring and Testing

Market Focus:
Globally (various continents)

Year Founded:

Office & Distributor locations:


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