The 7500 family (including the LI-7500 and LI-7500A) is the most widely used group of open path CO2/H2O analyzers in the world. Since its introduction in 1999, scientists have come to know that the LI-7500 provides high precision, accuracy, and stability. The LI-7500A continues to provide the high performance that scientists expect.
The LI-7500A is a high speed, high precision, non-dispersive infrared gas analyzer that accurately measures densities of carbon dioxide and water vapor in-situ. With the eddy covariance technique, this data is used in conjunction with sonic anemometer wind speed to determine the fluxes of CO2 and H2O into and out of ecosystems.
The LI-7500A accepts analogue data from a sonic anemometer and logs complete data sets to a removable USB storage device.