About us

ZES ZIMMER Electronic Systems GmbH is the sole high-tech company world-wide exclusively dedicated to high-precision power analysis. For more than four decades, power analyzers have been devised, developed, manufactured and sold to customers around the globe from ZES ZIMMER’s corporate headquarter in Oberursel (Frankfurt)/Germany.

ZES ZIMMER's focus lies on broadband single-/three-phase precision power analyzers. The electric and electronics industry uses them in R&D and for quality assurance, test labs employ them to guarantee compliance with standards, and universities rely on them to train future generations of engineers and scientists.

Thanks to their precision and reliability, the power analyzers of ZES ZIMMER’s  LMG series have conquered a leading position in the market. Our innovative measurement technology helps our customers to not only keep up with developments in the power electronics industry, but provides them with an effective means to leapfrog ahead of their competitors and place their company and products in pole position. It is our commitment to enable our customers to get fast, precise and reliable results in order to solve their measurement tasks in an efficient manner – our time-proven technology and our decade-long experience in power analysis provide all it takes.

For further details, data sheets and application notes please visit our product pages.


Founder Dipl.-Ing. Georg Zimmer and Dr. Conrad Zimmer

Family-operated Business - Run by the second generation » Read more


Certificates - Addcreditation

We are certified according to: » Read more


Organizations to high-precision power analysis

We are members of the following Organizations: » Read more