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Professional Self-Cleaning RS485/Modbus Multi-Parameter Water Quality Sensor

This professional self-cleaning RS485/Modbus multi-parameter water quality sensor features an integrated industrial-grade design. It supports simultaneous measurement of 8 water quality parameters (e.g., DO, COD, pH) with customizable configurations. Equipped with an automatic cleaning system, it effectively prevents microbial adhesion and cuts maintenance costs significantly. Adopting RS485 bus and Modbus/RTU protocol, it transmits data directly to collection platforms. With IP68 waterproof rating, POM+316L materials and easy submersible installation, it enables long-term accurate online monitoring for various water quality scenarios.
  • Model No.:

    LW119D-MPS(RS485)
  • Use:

    Monitor Various Water Qualities
  • Power Supply:

    DC12V
  • Certificates:

    CE,ROHS,FCC,ISO and 11 patents certifications
  • Customized Support:

    OEM, ODM
  • Warranty:

    1 Year
  • Product Detail
ZONEWU LoRaWAN Multi-Parameter Water Quality Sensor


ZONEWU LoRaWAN Multi-Parameter Water Quality Sensor:

This RS485/Modbus multi-parameter water quality sensor features an industrial-grade design and IP68 waterproof rating, supporting accurate multi-parameter measurement and stable data transmission for long-term online water quality monitoring across diverse scenarios.


LoRaWAN Multi-Parameter Water Quality Sensor: Key Applications & Use Cases
1. Municipal Water Supply and Pipe Network Monitoring
Deployed at key nodes such as waterworks, secondary water supply stations, and underground pipe networks, it conducts 24/7 online monitoring of pH, turbidity, residual chlorine and other parameters. Through RS485/Modbus communication, it timely alerts risks of water pollution and pipe network leakage, ensuring the safety of domestic drinking water and assisting water supply departments in intelligent scheduling.
2. Industrial Wastewater and Process Water Treatment
Suitable for chemical, electroplating, and electronic manufacturing industries, it is installed at wastewater discharge outlets, reclaimed water reuse systems, and production process pipelines. It accurately captures abnormal fluctuations in water quality parameters, provides data support for process adjustment, strictly controls wastewater discharge standards, and reduces the cost of industrial water use.
3. Intelligent Aquaculture Management
Designed for offshore cage culture, coastal shrimp ponds, and inland industrial aquaculture, it is resistant to high humidity and high salt spray environments. It real-time monitors water pH, dissolved oxygen, and temperature, and combines with data to help farmers scientifically adjust water exchange and feeding strategies, preventing diseases caused by sudden water quality changes.
4. Environmental Monitoring and Ecological Early Warning
As a core terminal of surface water monitoring stations, it is deployed in rivers, lakes, reservoirs, and coastal waters. Relying on stable RS485/Modbus transmission, it achieves unattended long-term monitoring, providing environmental protection departments with first-hand data on water eutrophication and pollution, and supporting decision-making for river basin ecological protection.


RS485 parameters:

Output Method

RS-485 (Modbus/RTU)

Cleaning Method

Automatic cleaning

Storage Temperature

-5~40℃

Operating Conditions

0~40℃, ≤0.2MPa

Housing Material

POM and 316L

Installation Method

Submersible installation

Power Consumption

5W,12V

Power Supply

12VDC±5%

Protection Class

IP68

Optional Water quality multi-parameter sensor:

Sensor Type

Parameter

Range/Accuracy

Dissolved Oxygen Sensor

Measurement Range

0~20mg/L

Accuracy

±2%

Resolution

0.01mg/L

Turbidity Sensor

Measurement Range

0~200NTU;0~1000NTU

Accuracy

±3% or ±2NTU (0~200NTU);

±5% or ±3NTU (0~1000NTU)

Resolution

0.1NTU

Conductivity/Salinity Sensor

Measurement Range

0~5000μS/cm;0~200mS/cm;0~70PSU

Resolution

1μS/cm (0~5000μS/cm);

0.1mS/cm (0~200mS/cm);

0.1PSU (0~70PSU)

Accuracy

±1.5%

COD Sensor

Measurement Range (COD)

0~200mg/L (equivalent to KHP);

0~500mg/L (equivalent to KHP)

Measurement Range (Turbidity)

0~100NTU;0~200NTU

COD Accuracy

±5%

COD Resolution

0.1mg/L

Turbidity Accuracy

±5%

Turbidity Resolution

0.1NTU

pH Sensor

Measurement Range

0~14

Accuracy

±0.1

Resolution

0.01

ORP Sensor

Measurement Range

-1500mV~+1500mV

Accuracy

±6mV

Resolution

1mV

Ammonia Nitrogen Sensor

Measurement Range

0~100mg/L or 0~1000mg/L

Accuracy

±10% of reading or ±1mg/L (whichever is larger)

Resolution

0.01mg/L or 0.1mg/L

Temperature Sensor

Measurement Range

0~50℃

Accuracy

±0.3℃

Resolution

0.1℃


Packaging:

Single gross weight: 1.200 KG

Single package size: 37X26X5 cm

 

Product Description: 







Customer on-site examples: 




Application: 


The RS485/Modbus multi-parameter water quality sensor is an industrial-grade online monitoring device engineered to measure key water quality indicators including pH, dissolved oxygen (DO), COD, turbidity, and temperature. As a professional wired monitoring solution, it enables long-term, real-time tracking of multi-parameter data for comprehensive water quality assessment. It is widely deployed in municipal water supply, industrial wastewater treatment, aquaculture, environmental monitoring, and drinking water safety scenarios, where multi-parameter data directly reflects water health, pollution levels, and compliance status, helping to ensure stable operations, protect aquatic ecosystems, and safeguard public health.

Certifications:


We are best water quality multi-parameter sensor manufacturer and exporter in China with more than 10 years. Our water quality multi-parameter sensor products are certified  with of CE, ROHS.


 

 

Why RS485/Modbus for Multi-Parameter Water Quality Monitoring?


Stable & High-Speed Data Transmission:
Wired RS485 communication delivers reliable, low-latency data transfer in industrial environments, immune to wireless interference—critical for real-time multi-parameter tracking in dense facilities or harsh conditions.
Scalable & Easy Integration:
Compatible with standard Modbus/RTU protocols, it seamlessly integrates into existing water management infrastructure, supporting flexible expansion of sensor networks for large-scale monitoring projects.
Reliable in Harsh Environments:
Featuring an industrial-grade IP68 waterproof design and corrosion-resistant materials, it operates continuously in challenging water environments (e.g., wastewater tanks, coastal aquaculture) with minimal maintenance requirements.


 

 

Production Process:




Why choose us:


1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.



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