Since 1984, PP Systems has been supplying quality, rugged and reliable instrumentation to customers throughout the world for high level research.  We are considered a world leader in the design and manufacture of instrumentation for measurement of photosynthesis, soil respiration, chlorophyll fluorescence, CO2/H2O gas analysis and vegetation reflectance.  Our customers come from a wide variety of scientific disciplines including agronomy, horticulture, biology, botany, crop and soil sciences, forestry, ecology, meteorology, oceanography and plant physiology to name a few.  Our equipment is in use in over 100 countries worldwide and well documented in many prestigious scientific publications.