The portable cuvette system WATER-PAM-II belongs to the group of WALZ PAM fluorometers for aquatic research.

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High Quality Instrumentation for Plant Sciences

Combining innovation and tradition have made the Heinz Walz GmbH one of the world’s top producers of photosynthesis measuring systems.


High-end systems for 2D and 3D imaging of chlorophyll fluorescence from the microscopic to the leaf level.

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The MICRO-PAM is one of the WALZ systems designed for long-term monitoring of photosynthesis.

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The DUAL-KLAS-NIR is an example of WALZ devices developed for basic research.

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Meetings & News

Upcoming Meetings

May 14 - 20, 2022
JASM 2022, Joined Aquatic Sciences Meeting
Grand Rapids, MI, U.S.A.

May 16 - 20, 2022
53rd Ocean Liège colloquium-GO2NE oxygen conference
Liège, Belgium

May 22 - 27, 2022
ICTC 12, 12th International Conference on Toxic Cyanobacteria
Toledo, OH, U.S.A.

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Heinz Walz GmbH Celebrates its 50th Anniversary

In 1972, Heinz Walz started his firm as a one-man enterprise with support of his wife, Hannelore, who took care of the unavoidable small business demands. Besides his professional qualifications as master craftsmen and electrical engineer, his chief start-up capital was a patented concept for measuring photosynthetic CO2 uptake by plants.

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P700 Tutorial - The basics

For the study of photosynthesis, non-invasive photosystem-I probing P700 measurements are not only a valuable tool in their own right but even more so in combination with fluorescence measurements. This tutorial, tries to give the viewer a basic understanding of the method, the tools used and some examples of applications of P700-measurements in photosynthesis research.

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