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Fluorescence Self Cleaning Blue Green Algae Analyzer MODBUS Input Type

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Model Number: DS206
Minimum Order Quantity: 0-100PCS
Price: According to the specific quantity
Packaging Details: carton packaging
Delivery Time: 7-15 working days
Payment Terms: T/T, L/C, D/A, D/P
Detail Information
Product Name: Blue Green Algae Sensor Principle: Fluorescence Method
Measure Range: 0-270, 000 Cells/mL Resolution: 1 Cells/mL
Detection Limit: 300 Cells/mL Housing Material: SS316
Power Supply: 5~12vdc,current <50mA (when Not Cleaned) Output Signal: RS485, MODBUS Protocol
IP Grade: IP68 Deepest Depth: Underwater 10 Meters
High Light:

Fluorescence Blue Green Algae Analyzer


Self Cleaning Blue Green Algae Analyzer


Input Type blue green algae tester

Product Description

DS206 Fluorescence self-cleaning blue-green algae sensor that can be directly connected to PLC/ DTU without transmitter
The DS206 blue-green algae sensor adopts the principle of fluorescence method, which is more efficient and faster than the traditional manual counting method, and can be monitored online in real time. The sensor has better repeatability and stability. With an automatic cleaning brush, it can eliminate air bubbles, reduce the influence of contamination on measurement, make the maintenance cycle longer, and maintain excellent stability for long-term online use. It can play an early warning role in the reproduction of algae.


★ Digital sensor, RS-485 output, support MODBUS
★ With automatic cleaning brush to prevent contamination and eliminate air bubbles
★ Direct measurement, simpler than traditional manual counting method
★ Continuous online monitoring, real-time control of water quality dynamics

Technical parameter

Product nameBlue-green Algae Sensor
principleFluorescence method
Range0-270, 000 cells/mL
Detection limit300 cells/mL
Resolution1 cells/mL
temperature range0~ 50°C
Protection levelIp68
Sensor interfaceSupport RS-485, MODBUS protocol
InstallationInput type,
Power informationDC 5~12V, current <50mA
Probe cable length10 meters (default), can be customized
Housing materialSS316
Self-cleaning systemHave

Blue-green algae sensors are widely used in the monitoring, investigation and research of rivers, lakes, ponds, marine surveys, aquaculture, drinking water sources and other scenarios.

Maintenance methods and common problems Maintenance schedule and method

I. Maintenance schedule

Online blue-green algae sensor with automatic cleaning brush can be automatically cleaned without frequent cleaning.

Maintenance taskRecommended maintenance frequency
Calibrate the sensor (if required by the competent authority)According to the maintenance schedule required by the competent authority

2. Maintenance method Sensor maintenance

  • External surface of the sensor: Clean the external surface of the sensor with tap water. If debris remains, wipe it with a moist soft cloth. For some stubborn dirt, you can add some household washing solution to the tap water to clean it.
  • Check the cable of the sensor: the cable should not be tightened during normal work, otherwise the internal wires of the cable will be easily broken and the sensor will not work properly.

3) Check whether the measurement window of the sensor is dirty and whether the cleaning brush is normal.

  • Check the sensor's cleaning brush for damage.
  • 18 months of continuous use, need to return to the factory to replace the dynamic sealing device.

Frequently Asked Questions


ErrorPossible reasonsolution

The operation interface cannot be connected or the measurement result is not


Controller and cable

connection error

Reconnect controller and


Cable failure

Please contact us

The measured value is too high, too low or the value is

continuously unstable

The sensor window is

attached by a foreign object

Cleaning the sensor window

Damaged sensor spongeReplace the sensor sponge

Cable Definition

Power information

The power supply must be DC 5-12V +/-5%, current <50mA

Fluorescence Self Cleaning Blue Green Algae Analyzer MODBUS Input Type 0

Cable information

4 wire AWG-24 or AWG-26 shielding wire. OD=5mm
1, red line - power supply (VCC)
2, white line - 485 data _B (485_B) 3, green line --- 485 data _A (485_A) 4, black line --- ground (GND)
5, bare line shielding layer

About Us

Xi'an Desun Uniwill Electronic Technology Co., Ltd (Hereinafter referred to as Disen Sensing Company) is located in Xi'an High-tech Development Zone. It is a high-tech company integrating production, R&D, sales and engineering services. Relying on Xi'an's rich high-tech resources, we have carried out technical cooperation with many universities and scientific research institutions, constantly breaking through technical barriers, improving product performance, and using leading technology to provide high-quality products for the water quality monitoring industry.
We launched a wireless water quality monitoring solution based on the current rapid development of the Internet of Things technology, combining smart terminals and traditional display units through wireless transmission to achieve real-time dynamic water quality monitoring functions such as data cloud display, remote cloud control, and upper and lower limit alarms.

Quality assurance

Our company assures first-hand buyers that there will not be any product defects caused by substandard materials or factory manufacturing within one year from shipment.
Because the sensor has an automatic cleaning brush and a motor, it belongs to a dynamic seal structure. After 18 months of continuous use, the dynamic sealing device needs to be returned to the factory. If the buyer does not return to the factory and the sensor enters the water or fails to work, all consequences caused by the buyer shall be borne by the buyer If a defect is found during the warranty period, it is promised to repair or replace the defective product, or return the payment in addition to the first shipping and related formalities. Any product repaired or replaced during the warranty period will only enjoy the remaining warranty period of the original product.
After receiving the customer's questions about product quality, our company will confirm whether the product needs to be repaired within two weeks; products that have not been


This warranty does not cover the following:

● Damage caused by force majeure, natural disasters, social unrest, war (published or unpublished), terrorism, civil war or any government coercion

● Damage caused by improper use, negligence, accident or improper application and installation

● Expedited or express shipping for parts or products covered by the warranty

● Travel expenses for local warranty repairs
This warranty covers all aspects of the warranty provided by our company regarding its products.

The remedies such as repair, replacement, or refund of the payment as described above are special cases that do not violate this warranty. The remedies such as replacement or refund of the payment are for our products. Based on strict liability or other legal theories, our company is not responsible for any other damage caused by product defects or negligent operation, including the subsequent damage caused by causality with these situations.

Contact Details

Phone Number : +86 181 8242 9986

WhatsApp : +8618182429986