LI-7815 Analyzer

LI-COR now offers the LI-7815 CO2/H2O Trace Gas Analyzer for long-term CO2 monitoring and measurements requiring high precision CO2 measurements. For more information, visit the LI-7815 webpage.

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LI-7000 CO2/H2O Gas Analyzer


  • High precision.
  • Versatility - ideal for a variety of applications, from eddy covariance flux to small volume measurements.
  • Versatile outputs, including high speed Digital-to-Analog converters, USB, and RS-232 enable flexible data transfer options.
  • Field serviceable optical bench - saves time and maintenance costs.
  • Built-in-pressure sensor with 0.1% accuracy, for automatic compensation for pressure changes in the sample cell.
  • Built-in auxiliary pump can be used for either sample or reference cell.
  • Direct connection of air fittings to the optical bench eliminates diffusive leaks.
  • Heat exchangers equilibrate incoming air to the cell temperature.
  • Large diameter inlet ports allow high flow rates with virtually no backpressure, even at flow rates of 10 lpm.
  • Simple Windows® software for setup, control, and data logging. Intelligent diagnostic indicators warn of potential problems, before data are compromised.
  • Two auxiliary input channels for connecting analog signals from additional sensors.
LI-7000 CO2/H2O Gas Analyzer

The LI-7000 CO2/H2O Gas Analyzer is a high performance, high speed, differential gas analyzer designed for laboratory and field uses. We continue to provide service and support for the LI-7000.


The LI-7000 provides high performance in an easy-to-use platform. The design is based on years of development and customer input. Numerous innovative features make the LI-7000 an excellent choice for high-precision measurements and long-term monitoring applications, including:

  • USB communications for simple plug-and-play setup, operation, and data collection.
  • RS-232 communication for interfacing with data loggers and computers.
  • A long life, vacuum sealed tungsten filament source. This source has low power consumption, and is highly stable.
  • Nickel-plated optical cells minimize water sorption.
  • The optical cells can be removed and cleaned in the field without requiring factory recalibration.
  • Sampling cells and internal chemicals are in easily accessible areas of the analyzer. This minimizes the need for factory service, saving you down time and money.
LI-7000 hardware


  • Atmospheric Monitoring
  • Eddy Covariance
  • pCO2/DIC
  • Insect Respiration
  • Respirometry
  • Small volume measurements
  • Airborne measurements
  • Custom-made photosynthesis systems


The LI-7000 is easily configured using either the Windows® interface software or through the simple instrument interface. LI-7000 Software Main WindowBoth offer the full suite of configuration options and graphical data displays. In addition, configuration command strings can be sent to the LI-7000, making it an ideal choice for applications that require automated control.

The instrument display is a large 40 x 8 character backlit LCD display that shows measured values in real time. Up to 8 variables can be viewed on a single display screen. Over 40 measured and diagnostic variables, including CO2 and H2O measurements as mole fraction, partial pressure, dew point, or raw absorptance are available for viewing on the display. Real time graphics mode allows up to three variables to be charted at a time. You can easily toggle between graphical and numeric displays with the press of a button.

LI-7000 Software Downloads

The LI-7000 software consists of instrument (embedded) and Windows® Interface Software. To avoid a configuration error upon initial connection, update both embedded (instrument) and Windows interface software.

Download Software
7000 Software Screenshot 1 7000 Software Screenshot 2 7000 Software Screenshot 3