Industry Leader in Plant Physiology & Photosynthesis Research Instruments

The Global Leader in Plant Physiology Research Instruments

From handheld light meters to portable photosynthesis systems that support customizable gas exchange and chlorophyll a fluorescence analyses, our instruments deliver best-in-class photosynthesis and plant physiology research technology built upon 40+ years of experience.

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LI-6878 Leaf Trace Gas Integration System

Seemless integration for real-time CO₂ isotope, CH₄, or N₂O measurements at the leaf level.

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LI-6800 Portable Photosynthesis System

Robust research tool with customizable chambers that measures photosynthetic gas exchange, chlorophyll a fluorescence, and more.

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LI-600 & LI-600N Porometer/Fluorometers

Rapidly measures stomatal conductance and chlorophyll a fluorescence over the same leaf/needle, simultaneously.

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LAI-2200 Plant Canopy Analyzer

World standard for indirect leaf area index measurements outperforms methods such as Ceptometry and Hemispherical Photography in terms of flexibility, advanced features, accuracy, and ease of use.

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LI-180
Spectrometer

Records the spectral composition of light sources at the single nanometer level, including photosynthetically active radiation (PAR) and other wavelengths

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LI-190R Quantum
PAR Sensor

Provides accurate measurements for most broad-spectrum light sources, including natural sunlight, artificial, or mixed sources, to evaluate plants' light use.

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