37 Years of excellence

LICOR INC USA

1. Eddy Covariance Systems for Flux Measurements

For measurements of Gas Exchange between terrain and atmosphere, LI-COR offers simple solutions that give fully processed flux results on site, in real time. These systems are scalable-from basic systems to measure carbon dioxide exchange, evapotranspiration, and energy flux to advanced systems that measure methane flux and additional biological and meteorological systems

FEATURES

  • The most trusted eddy covariance analyzer simplified
  • A flux station for every need
  • Preferred by the major networks – Chinaflux, Ameriflux,Asiaflux
  • Time-tested non-dispersive infrared gas analysis technology and modern electronics for a high performance, low cost instrument.
  • Uncompromised results. Fully processed fluxes in real time with the SmartFlux System.
  • Synchronized digital wind data and diagnostics from the most trusted anemometers.

RESULTS

Each flux station automatically calculates flux results using Eddy Pro Software on the Smart Flux System. Optional Flux Suite Software puts the flux system online.

Learn more about Eddy Covariance Systems

2. Analyzers Package (CO2/H2O/CH4 Analysis)Offering Flexibility for different Research needs, the following gas analyzers are available in Eddy Covariance Flux Systems.

LI-7500 DS Open Path CO2/H2O Gas Analyzer – GHG Analyzer

The new LI-7500DS analyzer delivers the performance and dependability of previous LI-7500 models, in a streamlined, lower cost configuration with even lower power requirements

The LI-7500DS is designed for high-speed CO2 and water vapor measurements in ambient air.

Features :

  • Lower power and maintenance requirements make it ideal for field deployments.
  • Omnidirectional sampling provides versatile installation options and continuous data coverage.
  • Logs complete eddy covariance data sets – including wind speed measurements from a sonic anemometer and supporting meteorological, radiation, and soil data from a LI-COR Biomet System.

Learn more about LI-7500 DS

LI-7200RS Enclosed CO2/H2O Analyzers – GHG Analyzer

The LI-7200RS Enclosed CO2/H2O Gas Analyzer is designed for high-speed CO2 and water vapor gas exchange measurements. It combines the performance of a closed path analyzer with the ruggedness and low power demands of an open path instrument. The next generation of the CO2/H2O gas analyzer chosen by leading flux networks around the world including NEON and IONS

Features :

  • Minimizes data gaps with continuous measurements through rain, snow, and fog.
  • Improved optics and temperature controls increase long-term stability and reduce drift-even when the instrument is not cleaned for weeks at a time.
  • Logs complete eddy covariance data sets-including wind speed measurements from a sonic anemometer and supporting meteorological, radiation, and soil data from a LI-COR Biomet ystem.

Learn more about LI-7200 RS

LI-7700 Open path CH4 Gas Analyzer – GHG Analyzer

The LI-7700 is designed specifically for eddy covariance flux measurements to evaluate methane emissions from the terrestrial landscape. It provides low-maintenance long-term operation in demanding field deployments.

Features :

  • Low power consumption: Draws 8 watts of power nominally, making it ideal for use with solar power supplies in remote locations.
  • High precision measurements: 5 ppb RMS noise at 10 Hz in typical ambient concentrations.
  • Self-cleaning optics: Monitors signal strength and automatically cleans the lower mirror when the signal drops below a user-settable threshold.
  • Heated mirrors reduce condensation on optics, which prevents data loss during humid conditions.

Learn more about LI-7700

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.

Advantages:

  • 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.

Learn more about LI-7000

LI-840A CO2/H2O Analyzer

LI-COR designed the LI-840A CO2/H2O Analyzer for continuous monitoring applications that require accuracy, durability, and ease of use. The LI-840A is an absolute, non-dispersive infrared (NDIR) gas analyzer based upon a single path, dual wavelength infrared detection system. This low-maintenance, high-performance monitoring solution gives accurate, stable readings over a wide range of environmental conditions.

Features :

  • Easy integration into monitoring systems.
  • Wide Measurement Range: 0-20,000 ppm (0-2%) for CO2 and 0-60 mmol/mol for H2O (dry air to 36 ? dew point).
  • Wide Operating Temperature: -20°C to +45℃.
  • Low Power Consumption: Less than 4W after power-up.
  • Low Noise: Less than 1 ppm @ 370 ppm for CO2, less than 0.01 mmol/mol at 10 mmol/mol for H2O with 1 second signal averaging.
  • Flow Rate: Maximum of 1 liter/minute.
  • Real-Time, Corrected Readings: On-board sensors measure and correct for changes in cell temperature and pressure.
  • CO2 concentrations are corrected for band-broadening due to water vapor.
  • User-Cleanable Optics: The optical bench can be easily cleaned by the user. This reduces down-time from contamination and eliminates the need for factory recalibration.

 

Learn more about LI-840A

LI- 820 CO2 Analyzer

LI-COR designed the LI-820 CO2Analyzer for continuous monitoring applications that require accuracy, durability, and ease of use. The LI-820 is an absolute, non-dispersive infrared (NDIR) gas analyzer based upon a single path, dual wavelength infrared detection system. This low-maintenance, high-performance monitoring solution gives accurate, stable readings over a wide range of environmental conditions.

Features :

  • Easy integration into monitoring systems.
  • Wide Measurement Range: 0-20,000 ppm.
  • Wide Operating Temperature: -20℃ to +45℃.
  • Low Power Consumption: Less than 4W after power-up.
  • Low Noise: Less than 1 ppm of noise @ 370 ppm, with 1 second signal averaging.
  • Real-Time, Corrected Readings: On board sensors measure and correct for changes in cell temperature and pressure.
  • User-Cleanable Optics: The optical bench can be easily cleaned by the user. This reduces down-time from contamination and eliminates the need for factory recalibration.

 

Learn more about LI-820

LI-610 Portable Dew Point Generator 

The LI-610 Portable Dew Point Generator is a rugged, portable instrument that provides a stream of gas with a precisely controlled dew point. High accuracy and stability make the LI-610 an ideal water vapor source for field or laboratory use in the environmental and biological sciences. The LI-610 is commonly used to calibrate the H2O channel of gas analyzers or other precision sensors, and provide precise control over water vapor mole fraction in environmentally regulated chambers.

Features :

NIST certified

  • Generates stable dew points from 0 to 50 ℃
  • Accuracy of ± 0.2 ℃ dew point
  • Completely portable and self-contained (battery or AC operated)
  • No need for gas tanks and mixing systems
  • Millivolt output of dew point temperature for data acquisition
  • External control via 0-5 V input signal
  • Low Maintenance
  • Easy flow adjustments
  • LCD display

Learn more about LI-610

3. PHOTOSYNTHESIS & FLUORESCENCE SYSTEMS

LI-6800 Portable Photosynthesis and Fluorescence System 

The LI-6800 is an entirely new instrument for measuring photosynthetic gas exchange and chlorophyll fluorescence from plants.

The new Rapid Sensing™ Technology makes the LI-6800 the most technologically advanced photosynthesis system in the world. With gas analyzers, temperature response, and the flow path split all located near the chamber, your measurements are faster and more precise than ever before.

Features :

 Rapid Sensing Technology 

When you change the leaf chamber environment-light, temperature, CO2, or H2O-the instrument adjusts to the new set point right away thanks to Rapid Sensing™ Technology. The fast adjustment saves time and enables you to measure a plant’s response to rapidly changing conditions.

 Full Control over Water Vapor –

Providing full control over water vapor, the LI-6800 can maintain humidity at any level below condensing conditions in the leaf chamber and gas analyzers.

 Fast and Precise Temperature Control –

Capable of achieving 10℃ below and above ambient temperature, the LI-6800 provides fast and precise temperature control. It can control temperature at a set point, track the ambient temperature, or ramp the temperature up or down according to your experimental requirements.

 User adjustable flow rates –

User-adjustable flow rates-from 0 to 2.5 liters per minute-minimize response times and expand the system versatility.

 Precise CO2 Control –

The precise control of CO2 allows for faster measurements, so you can perform rapid A-Ciresponse curves with the Rapid A-Ci Response (RACiR™) Method.

 A gas input port enables you to subject the leaf to custom gas blends.

 A unique, durable fine-wire thermocouple maintains direct contact with the leaf-to get the actual leaf temperature with every measurement.

 Highly uniform light sources –

The light sources are highly uniform, which means your leaf will experience more consistent assimilation. Variation in light intensities is less than 10% of the mean over 90% of the leaf area of the LI-6800 fluorometer. This high uniformity minimizes artifacts that can cause errors in gas exchange measurements and confound the understanding of processes that require comparison of gas exchange and PAM chlorophyll a fluorescence parameters.

Large leaf area
With a large leaf chamber aperture, the LI-6800 chambers minimize edge effects and maximize signal-to-noise ratios. The standard leaf chamber aperture has an area of 9 cm2. The fluorometer has a 6-cm2 aperture. The large leaf area improves the accuracy of all measurements, but will be especially noticeable when making low-flux measurements, such as measurements of dark respiration.

Fast survey measurements
Make a survey measurement in less than a minute. The system’s fully automated control of the leaf environment is fast and responsive, achieving stability in as little as 45 seconds, so you can get more data out of your day.

Dual light source control
With an additional cable and light source, it’s now possible to add a light source below the plant-in addition to the light source above the plant-to evenly illuminate the entire sample area. This also helps light both sides of thick plant material like cacti.

CHAMBERS –

The LI-6800 is available with variety of leaf chambers, which enable you to measure gas exchange from leaves of nearly any shape and size, and under a variety of light conditions. For other applications the Custom Chamber Adapter allows you to connect a homemade chamber to the LI-6800’s differential gas analyzer. Chambers include –

  • Multiphase Flash Fluorometer
  • 3×3 cm Clear-top Leaf Chamber
  • Small Plant Chamber
  • Bryophyte Chamber
  • Custom Chamber Adapter
  • Insect Respiration Chamber

Learn more about LI-6800

LI-6400XT Portable Photosynthesis System

Features :

  • Rapid Response: Gas analyzers are located in the sensor head, minimizing time delays.
  • Precise and Accurate: Measure small photosynthesis rates and CO2 exchange.
  • Portable: Laboratory-quality measurements in a field-portable system.
  • A variety of applications are supported by many chambers and light sources.
  • Open-source software provides an unprecedented level of automation and flexibility.
  • Powerful networking capabilities provide a variety of data output, file sharing, remote diagnostics and training possibilities.
  • Complete solution: Measures fluorescence and gas exchange simultaneously over the same leaf area with full control of environmental variables.
  • Reliable: LI-COR’s commitment to continuous innovation and quality products (ISO 9001:2001 certified) ensures your LI-6400XT remains a smart choice for years to come.
  • Rugged: Can be used in environments ranging from the moist tropics to the dry arctic.

Learn more about LI-6400 XT

4. SOIL GAS FLUX MEASUREMENTS –

LI-8100A Automated Soil Gas Flux System

Features :

  • Advanced Chambers – Soil chambers that minimize effects on your measurements – to capture the true flux
  • Reliable Measurements – Robust datasets with multiple chambers
  • Compelling Data – SoilFluxPro™ software processes complex datasets to provide the right answer-right away
  • Trace Gas Flux – Measure flux of N2O, CH4, CO2isotopologues, or other gases with the LI-8100A system and a trace gas analyzer

Continuous Datasets – Long-term measurements of unbroken datasets

Map Your Data – Map flux from your site with the survey configuration

Multiplexed Long-Term System –
The multiplexed configuration measures gas exchange from soils, providing a large sample size so you can determine the flux rate with confidence.

Capable of running autonomously for months, it collects a continuous dataset from up to 16 chambers to characterize spatial and temporal variation in gas exchange over a research area.

It supports external trace gas analyzers to measure flux of CH4, N2O, CO2 isotopologues, or other gases. You won’t get these results with anything else.

Single Chamber Long-Term System –

This system makes continuous automated measurements with a single chamber.It is ideal for measurements that are widely distributed or for assessment of temporal CO2 flux.

With an external trace gas analyzer, you can use this system to measure flux of CH4, N2O, CO2isotopologues, or other gases.

Survey System –

The survey system enables you to quickly conduct measurements over a study site using either the 10 cm or 20 cm chamber.

It is ideal for assessing spatial variability of CO2 flux over a site. Also supports external trace gas analyzers.

With the GPS accessory, you can generate maps of your data-to visualize results from survey or continuous measurement.

Learn more about the LI -8100A

5. LEAF AREA / LAI

LAI-2200C Plant canopy Analyser

The LAI-2200C Plant Canopy Analyzer uses a nondestructive method to easily and accurately measure Leaf Area Index (LAI), It consistently outperforms other methods such as Ceptometry and Hemispherical Photography in terms of accuracy, flexibility, advanced features and ease of use.

Features :

  • Canopy Variety – Computes LAI even on row crops and isolated trees.
  • Any Sky – Accurate in most daylight conditions unlike other methods which require specific sun angles or cloud cover.
  • True Gap fraction – Measures five zenith angles in a single measurement.
  • Simple yet powerful software.
  • Automatic and independent logging.
  • Integrated GPS and mapping options.

Learn more about LAI-2200C

 

 

LI-3100C Area Meter

Precise, Rapid Measurements of Large or Small Leaves
The LI-3100C Area Meter is designed for efficient, exacting measurements of both large and small objects. User-selectable area resolution of either 1 mm2 or 0.1 mm2 is available without having to change optics. This versatility provides the flexibility necessary for diverse project requirements.

Features :

  • Area, Length, Maximum Width, Average Width
  • A single lens provides adjustable resolution of 0.1 or 1mm2
  • High accuracy and repeatability, and fast, continuous operation for large quantities of samples with individual or cumulative area recorded
  • Large (25 cm wide, 2.5 cm thick with 1 mm2 resolution) or small (<1 cm2area when using 0.1 mm2 resolution) leaves or other objects, including needles
  • Quiet belt system with adjustable press roller to flatten curled leaves
  • Data is shown on the instrument LED display or on the computer screen using Windows® software to collect and store data via RS-232 or USB

Learn more about LI-3100C

LI-3000C Portable Leaf Area Meter

  • Simple, Fast and Accurate
  • Proven Technology
  • Non-destructive measurements
  • Lightweight
  • Windows Interface Software

The LI-3000C combines an easy-to-use readout console with the proven scanning technology of the LI-3000C sensor head to provide a powerful system for portable, non-destructive leaf area measurements. It utilizes an electronic method of rectangular approximation to provide 1 mm2 resolution. Leaf area, leaf length, average width, and maximum width are logged by the readout console as the scanning head is drawn over a leaf. Files can be viewed on the display or output to a computer using the LI-3000C application software.

Learn more about LI-3000C

6. LIGHT MEASUREMENTS

Redesigned light sensors optimized for ecological, meteorological, solar energy, plant research, and underwater measurements.

A new design that builds on our 40+ years of experience producing light sensors

LI 200R – PYRANOMETER

  • Measures total solar radiation in Wm2
  • Micrometeorology research and energy balance measurements
  • Photovoltaic system optimization.
  • Weather monitoring.

 

 

 

 

LI 190R – QUANTUM SENSOR

  • Measures photosynthetically active radiation (PAR)
  • Green house and growth chamber lighting
  • Agriculture productivity studies
  • Micrometeorology research

 

 

 

 

LI 210R – PHOTOMETRIC SENSOR

  • Measures light as seen by human eye in Lux or Lumens
  • Indoor lighting intensity
  • Light uniformity
  • Glass treatment effects.

LI 192 UNDERWATER QUANTUM SENSOR

  • Measures underwater photosynthetically active radiation in one hemisphere
  • Underwater measurements of upwelling or down welling radiation
  • Ideal for turbidity and light absorption measurements

LI 193 SPHERICAL UNDERWATER QUANTUM SENSOR

  • Measures underwater photosynthetically active radiation from all directions
  • Underwater light measurement
  • Ideal for turbidity and light absorption measurements

 

 

 

 

 

LI 191 LINE QUANTUM SENSOR

  • Measures photosynthetically active radiation over 1 meter length
  • Under canopy light measurements
  • Agriculture productivity studies

 

 

 

 

 

LI-1500 Light sensor logger

  • Logs data from upto 3 light sensors.
  • GPS enabled for mapping light distribution

 

Learn more…

 

 

 

 

LI 250A LIGHT METER

  • Read out device for light sensors
  • Learn more about the Light Sensors

Learn more …