Also, it can be used for measure canopy photosynthesis. The sampling chamber is directly connected to the gas analyzer, avoiding the gas transportation from the chamber to the analyzer. Responses curves to CO2, light, temperature, and H2O can be obtained from the CI-500. For measure CO2 and H2O, CI-500 gas analyzer utilizes four cells. Calibration to zero and span are not needed for the analyzer.
Optional devices are soil respiration chamber and chlorophyll fluorescence sensor.
When is connected to a computer, CI-500 can display graphically or digitally each of the 15 different measurements.