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The flowtronic product range of the former German company GREGORY Technology GmbH was acquired from the insolvency estate following the technically caused insolvency in early 2024.
Since then, the flowtronic product line has been continued by the Chinese company ZEER Testing Technology.
For over 25 years, GREGORY Technology specialized in measurement technology, primarily for automotive research and development.
Due to a major technical disaster caused by force majeure, the company suffered a complete business interruption. Ultimately, filing for insolvency was unavoidable at the time.
Your Business Partner within Europe
Walter Emmernann GmbH is the first point of contact for flowtronic products in Europe.
flowtronic Product Line

Since the year 2000 the German company GREGORY Technology GmbH has been developing, manufacturing, and supplying worldwide measuring systems for determining the fuel consumption of combustion engines in mobile driving tests and on test benches under the brand name "flowtronic."
Due to easy handling, a robust and durable construction and the unique resolution and measuring accuracy of the sensor element, the flowtronic systems are suitable for all types of consumption measurement with gasoline, diesel, alcohol and bio fuels.
The range of applications include motor bikes, passenger cars, trucks, busses, commercial vehicles, specialised vehicles like equipment for earth moving, mining, material handling and ports, cranes, diesel locomotives, tracked vehicles and boats. A further application is the latest generation of hybrid vehicles.
flowtronic systems are available in various configurations as turn key solutions.
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flowtronic System Overview
Get to know the flowtronic system for fuel consumption testing within 3 minutes.






