Exceptionally stable and precise measurements
When methane matters the most, the LI-7810 provides CH4 measurements with high precision and stability and good CO2 and water vapor measurements.
LI-7810 Long-Term Outdoor CH4 Stability
LI-7810 7-Day CH4 Precision with Allan Deviation Plot

Key specifications
General
Total Weight: 10.5 kg (including batteries)
Battery Life: 8 hours typical with 2 batteries
CH4 Measurements
Response Time (T10-T90): all from 0 to 2 ppm≤ 2 seconds in Standard Configuration
≤ 3 seconds in High Altitude Configuration
Range: 0 to 100 ppm
Precision (1σ):0.60 ppb at 2 ppm with 1 second averaging
0.25 ppb at 2 ppm with 5 second averaging
Maximum Drift: < 1 ppb per 24-hour period
Choosing your analyzer
The LI-7810 Trace Gas Analyzer is ideal for applications that require long-term CH4 monitoring, or where precision and stability over time is critical. The LI-7810 is also able to provide a CO2 measurement. The CO2 measurements provided by the LI-7810 are appropriate for chamber-based CO2 flux measurements, such as with the Smart Chamber. Learn more about using the LI-7810 for soil gas flux here.
For applications that demand long-term CO2 monitoring and exceptionally precise and stable CO2 measurements, consider the LI-7815.
The LI-7810 is not designed for eddy covariance applications—which requires higher frequency measurements, but as a closed path analyzer it can be used for pCH4 measurements. If you need higher frequency measurements for the eddy covariance method, consider our eddy covariance solutions.
