System Components
CH4/CO2/H2O Analyzers
LI-COR gas analyzers are specifically designed for eddy covariance flux measurements.
- High speed, high precision
- Built for the field
- Low power (solar power operation)
- Lightweight, low maintenance
- Weatherized instruments require no enclosures
Sonic Anemometers
LI-COR eddy covariance systems are compatible with almost
any sonic anemometer brand and model.
- Ease of use:
Quick connect cables, provide simple, robust electrical connections for common sonic anemometer models. - Data logging:
Store data from gas analyzers and anemometers in a format that imports seamlessly into EddyPro eddy covariance software.
Gill Instruments
Four Gill anemometer models are available directly from LI-COR with
gas analyzer purchases:
Each Gill sonic anemometer is provided with:
- Wind tunnel calibration
- Analog output channels
- Carrying case
- Mounting post
- Communication cables are included with WindMaster™ and WindMaster™ Pro models
- Optional quick connect analog cables available for WindMaster™ and WindMaster™ Pro for direct connection between sonic and LI-COR analyzers
Campbell® Scientific, Inc.
- Connect a CSAT3 directly to a LI-COR gas analyzer and data logger
- LI-COR offers preconfigured analog data cables for simple direct connections to the anemometer and LI-7550
Additional high-speed anemometers supported:
RM Young, Metek, Kaijo-Denki, other sonic anemometers with analog outputs.

RM Young
Metek
Anemometer-to-Analyzer Connection:
LI-COR provides cables for direct connection of the Gill WindMaster™, WindMasterPro™, or Campbell® Scientific CSAT3 Sonic Anemometers to either the LI-7500A, LI-7200, or LI-7700.
| Cable Part Number | Cable Description |
|---|---|
| 9975-033 | Connect GILL-WM or GILL-WMP to the LI-7200 or LI-7500A CO2/H2O Analyzer. |
| 9977-062 | Connect GILL-WM or GILL-WMP to the LI-7700 CH4 Analyzer. |
| 9975-035 | Connect CSAT-3 to the LI-7200 or LI-7500A CO2/H2O Analyzer. |
| 9977-063 | Connect CSAT-3 to the LI-7700 CH4 Analyzer. |
| 9975-041 | Connect GILL-R3 or GILL-HS to the LI-7500A or LI-7200 CO2/H2O Analyzer. |




Net Radiometer - Used to measure incoming and outgoing solar radiation. Different models are available. Contact LI-COR for details.
Soil Heat Flux Plates — Measure heat exchange near the soil surface.
Soil Moisture Probes — For reliable, accurate soil moisture measurements.
Precipitation Gauge - A tipping bucket style rain gauge measures the amount of liquid precipitation.
Pyranometer - For field measurement of global solar radiation.
Quantum Sensor - Measures Photosynthetically Active Radiation (PAR) which is the 400-700 nm range of light.
Soil Temperature Sensor - Designed to be as small as possible to facilitate burial at any desired depth.
Relative Humidity and Temperature Probe - Provides reliable humidity and temperature measurements.
Multi-Plate Radiation Shield — Protects the temperature and relative humidity sensors from direct sunlight.
Datalogger - High performance data logger & communications device capable of continuous real-time data acquisition from meteorological sensors.