Campbell Scientific, Inc.Logan, UT
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 TGA100A

The TGA100A Trace Gas Analyzer measures trace gas concentration in an air sample using tunable diode laser absorption spectroscopy (TDLAS). This technique provides high sensitivity, speed, and selectivity. The TGA100A is a rugged, portable instrument designed for use in the field. Common applications include gradient or eddy covariance flux measurements of methane or nitrous oxide and isotope ratio measurements of carbon dioxide or water vapor. The TGA100A concentration measurements can be recorded with a datalogger.
 
   
 CS7500

The CS7500 is an open-path, high-speed, high-precision, nondispersive infrared gas analyzer (IRGA) that accurately measures the in-situ densities of carbon dioxide and water vapor in turbulent air structures. In an eddy-covariance application, the CS7500 is used in conjunction with a CSAT3 Sonic Anemometer to determine CO2 and H2O fluxes. The primary components of the CS7500 are the sensor head and electronics enclosure.
 
 

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