ECO Fluorometer

Chlorophyll-a fluorescence serves as a valuable indicator of active phytoplankton biomass and chlorophyll concentrations in waters. This measurement is used for tracking biological variability and abundance in the water column.

Ex/Em: 470/695 nm • Sensitivity: 0.02µg/l • Linearity: 99%R2 • Range: 0.01–125 µg/l

Obtain CDOM fluorescence across a wide range of environments, from mangrove swamps to oligotrophic blue water.

Ex/Em: 370/460 nm • Sensitivity: 0.09 ppb QS • Linearity: 99%R2 • Range: 0–500 ppb


The qualities of the ECO line are now available for flow and dye tracing studies. Specify measurement sensitivity when ordering.

Uranine (fluorescein) Ex/Em: 470/530 nm • Sensitivity: 0.01 ppb • Linearity: 99%R2 • Range: 0–400 ppb


ECO phycobilin fluorometers have the high resolution necessary for early detection of either blue-green (phycocyanin) or brown (phycoerythrin) algae. These fluorometers are relative measurement instruments and should be calibrated by cell counts for a particular water mass.

Phycocyanin Ex/Em: 630/680 • Sensitivity: 0.05 ppt • Linearity: 99%R • Range: 0.05–400 ppt

Rhodamine (and Phycoerythrin) Ex/Em: 540/570 nm • Sensitivity: 0.01 ppb • Linearity: 99%R2 • Range: 0–230 ppb

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ECOView software | user's guide

ECO trio
ECO Meters
ECO Features

red bullet Available with temperature and/or pressure sensor

red bullet Internal logging

red bullet Available with bio-wiper

red bullet Puck™ style available

Marvin Johnson
Marvin Johnson, Production Engineer