Water Quality System (WQS)
Field & Laboratory Meters
  • pH, SCT, DO & BOD, Multi-parameter Testing
Environmental Monitoring Systems (EMS)
Multi-parameter Water Quality Sondes
  • Sampling, Logging& Profiling

Integrated Systems & Services (ISS)
Environmental Monitoring Modules
  • Buoy& Floating Platforms, Profiling Systems, EcoMapper AUV

EMS_6 Series and EXO Water Quality Sondes

Chlorophyll Sensor


Chlorophyll Sensor
Measure Chlorophyll Fluorescence with Self-Cleaning Sensor

Determine phytoplankton concentrations by detecting the fluorescence from chlorophyll in situ with the YSI 6025 Chlorophyll sensor.

Before the YSI 6025 made in situ measurement convenient, the common way to measure chlorophyll was to collect samples and use extractive analysis in a laboratory, or take large, bulky equipment to the field. Extractive analysis methods, though highly accurate, are time-consuming and require an experienced analyst. The YSI optical, fluorescence sensor is quick and efficient to use, and enables spot sampling in remote areas as well as continuous or interval monitoring.

The 6025 features a mechanical self-wiping capability for long-term monitoring, which helps ensure proper chlorophyll measurements. The sensor is available for use on the following sondes:

  • 600OMS V2
  • 6820 V2 & 6920 V2
  • 6600 V2 & 6600EDS V2
  • 600XL V2 & 600XLM V2

Chlorophyll Specifications
Range: 0 to 400 µg/L chl a
Resolution: 0.1 µg/L chl a, 0.1% FS
Depth: 200 ft, 60 m

You can rely on the accuracy and reliability of YSI's sensor technology - the performance of the 6025 sensor has been ETV Verified.*

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