Compact Chlorophyll Fluorometer Model Junior-PAM :

• Pulse-amplitude modulated (PAM) chlorophyll fluorometry in combination with saturation pulse analysis of fluorescence quenching is now a standard technique to assess plant photosynthesis.
• In the 1990s, the Walz Teaching-PAM fluorometer (PAM-200) carried PAM fluorometry into university classrooms. Since then, there has been considerable progress in LED and PC technology, enabling the development of a powerful and versatile, and at the same time compact teaching fluorometer: the JUNIOR-PAM.
• The JUNIOR-PAM employs either a blue power LED (Version JUNIOR-PAM) or a white power LED (Version JUNIOR-PAM/W) for pulse modulated excitation light, actinic illumination, and saturating pulses. The fluorometer has a far-red LED for selective excitation of PS I, which is needed for the determination of F0’ level fluorescence.
• Two different types of leaf-clips are provided. Measurements in ambient light are performed with a 60° leaf clip. A magnetic leaf clip is provided for dark-acclimation followed by measuring the maximum photochemical yield of photosystem II (FV/FM).
• An optional monitoring leaf-clip is available to measure ambient light intensity (PAR, μmol m-2s-1) at leaf level and leaf temperature.