LI-6800 Portable Photosynthesis System

Answer questions with confidence

Built on a foundation of decades of experience in photosynthesis research technology, the LI-6800 Portable Photosynthesis System empowers you to focus on your research questions.

Focus on your data

Fluorometer, file, calibration, balanced flow, and other utilities ease and assist your data collection.

Design your experiments

Support for custom gas mixtures, auxiliary sensors, custom chambers, and extensive programming capabilities give you flexibility for extended applications.

Take it comfortably into the field

Ergonomic grips, a carrying harness for support and access to controls, tripods, and a monopod for the sensor head facilitate your field work.

LI-6800 features that safeguard the collection and quality of publishable data include:

Automated startup, system tests and real-time operating status information ensure that the instrument starts and performs in top form, allowing you to quickly address issues if they arise.
Long-lasting, hot-swappable batteries keep up with you on long days. Battery charge status and a low-battery warning on the display let you keep going without interruption until you complete your measurements.
A responsive touch screen with a powerful graphics processor helps you visualize and understand the instrument settings.
Charts of live and logged data show multiple parameters at once. You can auto-scale, zoom in, and rescale charts to let the data reveal its story.

Configurable data logging capabilities help you get the data you need for a robust, thorough analysis.
Data are recorded as plain text and Microsoft^® Excel^® files with embedded equations so you can recompute datasets with altered parameters.
Configuration management tools let you store, load, and share configurations for different protocols and researchers.

Aquatic photosynthesis

aquatic a-q curve

The 6800-18 Aquatic Chamber—with the LI-6800 Portable Photosynthesis System—measures steady-state carbon assimilation and chlorophyll a fluorescence from algal suspensions, coral, macro algae, sea grasses, and more.

Dynamic Assimilation™ Technique

dynamic assymilation technique a-q curve chart

The Dynamic Assimilation Technique, based on a reformulation of the traditional assimilation equation, allows you to take measurements when chamber conditions are not at steady state, so you can record faster CO₂ response curves and survey measurements.