A new way of measuring chlorophyll fluorescence in the lab and field, this low cost hand-held unit uses high output LEDs

The PlantPen is an inexpensive, battery-powered instrument that helps to characterize plants by means of reflectance. Ch

The Z980 AquaPen is a handheld fluorometer that enables rapid and accurate measurement of photosynthetic parameters in s

The Z985 Cuvette AquaPen is a new cuvette version of the FluorPen fluorometer. It measures photosynthetic parameters in

The PlantPen is an inexpensive, battery-powered instrument that helps to characterize plants by means of reflectance. Ch

The Z955 Nitrogen Pen is a light-weight, battery-powered instrument that can be favorably used for effective nitrogen ma

The Z960 GFP-Pen is a handheld, battery-powered fluorometer that provides rapid and accurate readings of Green Fluoresce