The new system represents the largest WALZ Imaging System available.

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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

January 05 - 08, 2023
32th Western Photosynthesis Conference
Bodega Bay, California, U.S.A.

January 18 - 20, 2023
XVI International Colloquium on Plant Ecophysiology
Parque Katalapi, Puerto Montt, Chile

February 06 - 09, 2023
36th Conference Molecular Biology of Plants (MBP2023)
Hennef, Germany

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Tutorial WinControl-3

In a first tutorial the principles of fluorescence measurements were explained. The present tutorial focuses on the structure and features of WinControl-3 software and on aspects of some of the major experimental applications of this software. WinControl-3 is used by the following instruments: MINI-PAM-II, DIVING-PAM-II, WATER-PAM-II, MONITORING-PAM, MICRO-PAM, MICROSCOPY-PAM and JUNIOR-PAM.

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The new HEXAGON-IMAGING-PAM represents the largest WALZ Imaging System available. Despite the large measuring area, the instrument is still flexible enough to measure a wide variety of samples. These include individually potted plants, seedlings in larger plant trays, or harvested samples of higher or lower plants. It can measure areas of 20 x 24 cm with a resolution of up to 1000 x 1200 px (2x2 binning), according to the PAM principle with highest accuracy.

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