Take 40 measurements per second even in the most demanding or remote environments.
Eddy Covariance Analyzer
LI-7700 Open Path CH4 Analyzer
Measure methane in ambient air with a field-ready, open-path analyzer for eddy covariance systems
Measure methane in ambient air with a field-ready, open-path analyzer for eddy covariance systems. The LI7700 delivers high-speed CH₄ data with low power needs and dependable accuracy in remote environments.
Manufactured byLI-COR Environmental
Overview
About LI-7700 Open Path CH4 Analyzer
Built for eddy covariance, the LI-7700 Open Path CH4 Analyzer is the only open-path methane analyzer designed for field deployment in eddy covariance systems. It delivers high-speed CH4 measurements in ambient air with low power needs and minimal upkeep in real-world conditions.
Heated mirrors keep optics clear in humid conditions, letting you spend less time servicing and more time collecting data.
Add a 3D sonic anemometer for wind measurements and collect meteorological, radiation, and soil data with LI-COR Biomet System sensors.
Key Features
Why choose LI-7700 Open Path CH4 Analyzer
Use ~8 W during normal operation, making it ideal for use with solar power supplies.
Reduce complexity with open-path, in-air measurements—no pumps or tubes required.
Capture accurate, precise CH4 data using Wavelength Modulation Spectroscopy (WMS).
Resolution (RMS noise): 5 ppb @ 10 Hz and 2000 ppb CH4
Measurement Range: 0 to 25 ppm @ -25 °C, 0 to 40 ppm @ 25 °C
Works With
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Other Products in Eddy Covariance Systems
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LI-7500DS Open Path CO2/H2O Analyzer
Measure CO2 and water vapor measurements in ambient air with a field-ready, open-path analyzer for eddy covariance systems.
LI-7200RS Enclosed CO2/H2O Analyzer
Measure CO2 and water vapor measurements with a field-ready, closed-path analyzer for eddy covariance systems.
Carbon Node Eddy Covariance System
Take actual carbon measurements of your field, ecosystem, or site with the Carbon Node.