This section offers a wide range of chlorophyll fluorometers and clorophyll content meters for field use for the non-intrusive assessment of photosynthesis from single cells to whole leaves.

Walz instruments employ the so-called “Pulse-Amplitude-Modulation” (PAM) measuring principle, which is unique in providing a selective measure of the relat...

This section offers a wide range of chlorophyll fluorometers and clorophyll content meters for field use for the non-intrusive assessment of photosynthesis from single cells to whole leaves.

Walz instruments employ the so-called “Pulse-Amplitude-Modulation” (PAM) measuring principle, which is unique in providing a selective measure of the relative chlorophyll fluorescence quantum yield. With the help of the “Saturation Pulse Method”, the quantum yield of photosynthetic energy conversion is derived.

Since the introduction of our first chlorophyll fluorometer in 1985, PAM fluorometers manufactured by the Heinz Walz GmbH have become a standard in basic and applied photosynthesis research.

Walz PAM (Pulse-Amplitude-Modulation) fluorometers have contributed decisively to progress in photosynthesis research as well as plant eco- and stress-physiology. These contributions are documented in countless publications in numerous scientific journals and books. 

More