Trace Gas Analyzers

LI-7815

Grounded in Science, Designed for Research

From idea to understanding, LI-COR has your soil gas flux research covered. No other solution is as flexible or delivers the same level of proven hardware, gas analyzers, and advanced data analysis software.

LI-COR LI-7815 Trace Gas Analyzer Philippines

High precision CO2 monitoring

The LI-COR LI-7815 CO2/H2O Trace Gas Analyzer provides exceptionally stable and precise measurements for long-term atmospheric monitoring measurements. CO2 measurements drift less than 0.2 ppm per 24-hour period with 0.04 ppm precision (1σ, with 5-second averaging) at 400 ppm CO2 in dry air at STP.

Exceptionally stable and precise measurements

The LI-7815 CO2/H2O Gas Analyzer provides stable and precise CO2 measurements in a rugged, portable, and cost-effective design.

LI-7815 Long-Term Outdoor CO2 Stability

LI-7815 Long-Term Outdoor CO2 Stability
Thirty-day CO2 stability data from an LI-7815 CO2/H2O analyzer. A single instrument was operated outdoors continuously over the entire time period, measuring ambient air between stability checks. During stability checks, the analyzer was flushed for 10 minutes with tank gas (2 ppm CH4, 400 ppm CO2 mixed in air balance, 1% nominal concentration accuracy) and a time series data set was subsequently recorded for 10 minutes every 12 hours. The figure shows the mean value of the 10-minute measurements. Error bars represent a 1σ confidence interval (68%).

LI-7815 24-Hour CO2 Precision with Allan Deviation Plot

LI-7815 24-Hour CO2 Precision with Allan Deviation Plot
Figure 2. 24-hour CO2 stability data from an LI-7815 CO2/H2O analyzer (top). The instrument was operated continuously over a 24-hour period with a continuous flow of tank gas. The blue line shows 1-second measurements; the diamond line shows a 50-minute block average. Allan deviation plot (bottom) of CO2 measurements from an LI-7815 measuring 402.3 ppm CO2 shows precision at 1-second signal averaging, with improved precision as averaging time increases. Error bars represent 68% (±1σ) confidence intervals based on number of averaged time series available at each τ.

Key specifications

General

  • Total Weight: 10.5 kg (including batteries)
  • Battery Life: 8 hours typical with 2 batteries

CO2 Measurements

  • Response Time (T10-T90): all from 0 to 400 ppm
    • ≤ 2 seconds in Standard Configuration
    • ≤ 3 seconds in High Altitude Configuration
  • Range: 0 to 10,000 ppm
  • Precision (1σ):
    • 0.10 ppm at 400 ppm with 1 second averaging
    • 0.04 ppm at 400 ppm with 5 second averaging
  • Maximum Drift: < 0.2 ppm per 24-hour period

See the full LI-7815 specs

Applications

The LI-7815 Trace Gas Analyzer can be used for, but is not limited to, the following applications:

  • Atmospheric monitoring
  • Urban emissions monitoring
  • Mobile emissions monitoring
  • pCO2
  • Sensor networks
  • Large area emissions monitoring
  • Fugitive emissions
LI-7815 CO2_H2O Trace Gas Analyzer Philippines

For more information, contact us.

Brochure

Trace Gas Analyzers

Trace Gas Analyzers

Field guide to instruments for the earth sciences

Field guide to instruments for the earth sciences

Posters

Trace Gas Poster iconDevelopment of Trace Carbon Dioxide Isotopologue Analyzer – Performance Evaluation Study

Long-Term TGA Measurements at Mace Head, IrelandLong-Term Atmospheric Monitoring of Background CH4 and CO2 at Mace Head Atmospheric Research Station, Ireland Using LI-COR LI-7810 and LI-7815 Trace Gas Analyzers

TGA Urban N2O Soil posterHow do soil temperature and moisture regulate N2flux from an urban lawn?

TGA OF-CEAS posterMeasuring Very Small Soil Fluxes of N2CH4 Using a New OF-CEAS Technology

Trace Gas Poster iconDevelopment of Trace Methane and Trace Carbon Dioxide Analyzers – Performance Evaluation Studies, GCWerks Integration, and Results of Field Deployment

Trace Gas Poster iconPerformance validation of new high precision CH4 and CO2 analyzers based on optical feedback cavity enhanced absorption spectroscopy

Trace Gas Poster iconMethane and Carbon Dioxide Measurements with New High-Precision Low-Power Low-Maintenanace Closed-Path Analyzers: First Lab and Field Results

Trace Gas Poster iconChamber-based Soil Methane Flux Measurement

Trace Gas Poster iconMeasuring CH4 and CO2 with New Generation High-Precision Low-Power Low-Maintenance Closed-Path Analyzers: Lab and Field Results

Features

What makes LI-COR different?

LI-COR offers hardware, software, and analyzers that are based on extensive scientific research and testing. Patented designs minimize disruption of natural soil gas transport across the soil surface and record high-precision flux measurements to evaluate spatial and temporal variability.

Together, this integrated system provides an entirely comprehensive research solution for measuring large- and small-scale events—including CO2, CH4, or N2greenhouse gas emissions.

Designed for flexibility and convenience

LI-COR soil gas flux systems combine more than 20 years of experience with the latest innovations for flexibility and convenience.

LI-COR Soil Flux System with Smart Chamber, LI-8250 Multiplexer, LI-7810 Trace Gas Analyzer and LI-870 Gas Analyzer.
LI-7820 N2O/H2O Trace Gas Analyzer taking a survey measurement

Tailored for dependable practicality

Each LI-COR gas analyzer is portable, durable, and simple to deploy—allowing you to take CO2CH4, and N2survey and long-term measurements with ease.

Engineered to reduce artificial impact

The importance of soil gas flux chambers to take accurate measurements is often underestimated. An inherent challenge to chamber design is the influence the chamber may have on measurements.

All LI-COR chambers are designed to minimize chamber interference on the natural soil gas flux, and gas production and consumption, leading to accurate, consistent measurements.

LI-COR soil chambers reduce artificial impact
SoilFluxPro Screenshot

SoilFluxPro Software

SoilFluxPro Software simplifies the management and processing of large soil gas flux datasets. SoilFluxPro is powerful, free software included with LI-COR soil gas flux solutions. View, revise, and recompute flux data, get advanced guidance on deadband and stop time, perform quality assurance and quality control, and much more.

Brochure

Trace Gas Analyzers

Trace Gas Analyzers

Field guide to instruments for the earth sciences

Field guide to instruments for the earth sciences

Posters

Trace Gas Poster iconDevelopment of Trace Carbon Dioxide Isotopologue Analyzer – Performance Evaluation Study

Long-Term TGA Measurements at Mace Head, IrelandLong-Term Atmospheric Monitoring of Background CH4 and CO2 at Mace Head Atmospheric Research Station, Ireland Using LI-COR LI-7810 and LI-7815 Trace Gas Analyzers

TGA Urban N2O Soil posterHow do soil temperature and moisture regulate N2flux from an urban lawn?

TGA OF-CEAS posterMeasuring Very Small Soil Fluxes of N2CH4 Using a New OF-CEAS Technology

Trace Gas Poster iconDevelopment of Trace Methane and Trace Carbon Dioxide Analyzers – Performance Evaluation Studies, GCWerks Integration, and Results of Field Deployment

Trace Gas Poster iconPerformance validation of new high precision CH4 and CO2 analyzers based on optical feedback cavity enhanced absorption spectroscopy

Trace Gas Poster iconMethane and Carbon Dioxide Measurements with New High-Precision Low-Power Low-Maintenanace Closed-Path Analyzers: First Lab and Field Results

Trace Gas Poster iconChamber-based Soil Methane Flux Measurement

Trace Gas Poster iconMeasuring CH4 and CO2 with New Generation High-Precision Low-Power Low-Maintenance Closed-Path Analyzers: Lab and Field Results

Related Products

The LI-192 Underwater Quantum Sensor measures PAR from all angles in one hemisphere. The LI-192 works in air or underwater at depths up to 560 meters.
The LI-7810 CH4/CO2/H2O Trace Gas Analyzer offers high performance methane measurements in a durable, portable design. This makes the LI-7810 a great fit for survey or long-term measurements of soil C
The LI-COR LI-7815 CO2/H2O Trace Gas Analyzer provides exceptionally stable and precise measurements for long-term atmospheric monitoring measurements.
The LI-1500 allows for simple configuration of automated sampling to compute daily light integral (DLI) from PAR readings captured by LI-COR quantum sensors.
The LI-3000C is a lightweight, non-destructive instrument to get leaf area measurements where you need to. Ideal for rapid field surveys of attached leaves.
The LI-7200RS Enclosed CO2/H2O Gas Analyzer is designed for high-speed CO2 and water vapor gas exchange measurements.
Intuitive and very easy to use touch panel operation. Easy to clean glass top and round body. Horiba LAQUA Benchtop Type Water Quality Meter is both easy and fun to use!
The LI-550 reports wind speed, direction, temperature, humidity, pressure, tilt, and compass data. Its size and weight make it perfect for many UAS/UAV.
The LI-193 Spherical Quantum Sensor measures PAR in air or underwater from all directions at depths up to 350 meters. This sensor is useful for studies of phytoplankton, which uses radiation from …
Handheld water quality meters that measure pH, conductivity, resistivity, salinity, TDS and DO. Waterproof, dust proof, eco-friendly, shock and scratch resistant and built for hands-free testing.

How can we help?

You may contact our specialists by accomplishing form below.

failure analysis, material characterization, and metrology equipment

Subscribe to newsletter

Sign up for our newsletter to get updates on promos, seminars, events, products, application notes and more.

Inquire for this Product

LI-7815
Trace Gas Analyzers
LI-7815
Trace Gas Analyzers