When Clean Air Matters

Welcome to explore our fields of activity, services, and measurement systems for air pollution and industrial gas analysis!

When Clean Air Matters

Welcome to explore our fields of activity, services, and measurement systems for air pollution and industrial gas analysis!

Time flies! It’s been 40 years since OPSIS was founded by two young PhD students.

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News

2025-06-13

From Vision to Reality

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2025-05-19

Air Quality in Tunnels

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2025-04-17

Marine Business Opportunities

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Latest from the Blog

Blog OPSIS Once Upon A Time – The Founding Of OPSIS

2025-06-13

Once Upon a Time – the Founding of OPSIS

In 2025, OPSIS has been in the gas monitoring business for 40 years. How did it all start, and what does “OPSIS” actually mean? Read on to find out!

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Video in Focus

H2S Monitoring

It can be difficult to monitor H2S. The gas lacks distinct UV absorption lines and IR absorption monitoring is affected by interference from H2O.

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