Chl · Chlorophyll-a Sensor

M200 Chlorophyll-a Digital Sensor

Fluorescence measurement tracks chlorophyll-a from 0 to 500 ug/L with high sensitivity, low drift, and automatic temperature compensation. IP68 protection, flexible installation, and RS485 output support algae-bloom warning in source and surface water.

Chlorophyll-a Sensor
500 μg/L
Max Range
0.1 μg/L
Resolution
Fluorescence
High Sensitivity
IP68
Full protection · RS485
Features

Chlorophyll-a fluorescence for early algae-bloom warning

Defined excitation and emission wavelengths provide sensitive, reagent-free chlorophyll-a measurement. An optional self-cleaning brush limits biofouling for stable, unattended source-water monitoring.

Advanced Circuitry

High-stability fluorescence circuit, high-precision acquisition of weak fluorescence signals, anti-interference.

Easy Installation

Submersion and flow-through options with a standard cable for buoy or shore deployment.

Industrial-grade Protection

IP68 protection with a weather-resistant housing and optional self-cleaning brush to limit biofouling.

Fast Response

Fast fluorescence response, low drift, and stable long-term online operation.

Model Selection

Chlorophyll-a Sensor Model Overview

The series supports multiple installation methods and water types. Filter by installation method, then add a model to your selection list or contact our engineers for verification.

M200-CHL-01
RS485 Digital
Submersion · General Purpose
Range0–500 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialPOM+Stainless Steel
Surface WaterLakes & ReservoirsRiver Monitoring
M200-CHL-02
RS485 Digital
Submersion - With Self-cleaning
Range0–500 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialPOM+Stainless Steel
Water SourceBuoylong-term online monitoring
M200-CHL-03
RS485 Digital
Flow-through - Online Type
Range0–200 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialABS
Tap Water SourcePump StationProcess monitoring
M200-CHL-04
4-20mA Analog
Submersion · Analog Output
Range0–500 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialPOM+Stainless Steel
Landscape WaterRiverWetland
M200-CHL-05
RS485 Digital
Submersion · Aquaculture
Range0–100 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialPOM+Stainless Steel
AquaculturePondAlgal Bloom Warning
M200-CHL-06
RS485 Digital
Flow-through - Low Range
Range0–100 μg/L
Measurement PrincipleFluorescence
Temp. Range0–45°C
Housing MaterialABS
Water plant influentReservoirProcess
Specifications

Complete Specifications

General specifications for the series. Range, housing, and output vary by model and are confirmed during selection.

Measured Parameter
Chlorophyll-a(Chlorophyll-a)
Measurement Principle
Fluorescence
Measuring Range
0–100 / 0–200 / 0–500 μg/L(stepped)
Resolution
0.1 μg/L
Temp. Compensation
Automatic
Temp. Measurement range
0.0–45.0°C
Pressure Range
0–6 bar
Housing Material
POM+Stainless Steel / ABS(By Model)
Process Connection
G3/4 · NPT3/4
Cable Length
Standard 5m (Customizable)
Protection Rating
IP68
Power Supply
DC9–30V(recommended DC12V)
Cleaning Method
Self-cleaning (Optional)
Electrical Connection
RS485 (MODBUS-RTU) or 4-20mA Analog
Installation
Submersion / Flow-through
Warranty
1 year
Applications

Suitable Water Types

Chlorophyll-a reflects algal biomass and is closely linked to source-water bloom risk and drinking-water safety. Reagent-free fluorescence monitoring supports long-term unattended operation. Select the range and installation for your water type below.

Water source and water supply

5
Water SourceReservoirLakeWater plant influentDrinking Water Source

Surface water monitoring

4
River MonitoringWetlandLandscape WaterSurface Water

Aquaculture

3
Pond aquacultureAlgal Bloom WarningCirculating-water aquaculture

Research and environment

3
Environmental MonitoringResearch StationBuoy Station
Get a recommendation

Tell us your water type and range, and we will recommend the right chlorophyll-a model

Send us the chlorophyll-a range, water type, and installation conditions. Our engineers will recommend the range, housing, cleaning option, and installation, then configure the probe for plug-and-play connection to an 8-channel monitor.