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Industrial RS485 Residual Chlorine Sensor, No Reagent Low Maintenance

This product is specially designed for the continuous online monitoring of residual chlorine in aqueous solutions. It is widely applied in drinking water treatment plants, canning factories, water distribution networks, swimming pools, cooling circulating water systems, and various water treatment projects, ensuring stable and reliable water quality detection.
  • Model:

    ZW-YL-PR
  • Use:

    Measure Chlorine of water
  • Power Supply:

    12-24V DC
  • Output Signal:

    RS485/4-20mA
  • Certificates:

    Measurement Certification
  • Customized support:

    OEM, ODM
  • Warranty:

    1 Year
  • Product Detail

Industrial RS485 Residual Chlorine Sensor, No Reagent Low Maintenance


RS485 Residual Chlorine Sensor

Core Function: A digital online monitoring device based on RS485 (Modbus RTU) communication, enabling real-time and continuous detection of residual chlorine concentration in aqueous solutions.

Performance Advantages: Features high precision measurement, IP68 waterproof protection, no reagent consumption, low maintenance requirements, and strong anti-interference capabilities for stable long-term operation.

Communication Method: Achieves seamless data transmission via standard RS485 interface, supporting direct connection to PLC, DCS, and industrial control systems for easy integration into existing monitoring networks.

Application Scenarios: Widely used for continuous online residual chlorine monitoring in drinking water treatment plants, canning factories, municipal water distribution networks, swimming pools, cooling circulating water systems, and various industrial water quality treatment projects.


RS485 Residual Chlorine Sensor 

Communication Protocol: Based on RS485 physical layer, supports Modbus RTU protocol for reliable point-to-point and multi-drop data transmission.

Gateway & Integration: Compatible with industrial gateways that can forward RS485 data via Ethernet, 4G, or Wi-Fi to cloud IoT platforms.

Protocol Compatibility: Supports seamless integration with SCADA systems, and can be configured to output data in formats compatible with MQTT, HTTP, or other IoT protocols when paired with a gateway.

Transmission Features: Boasts long communication distance (up to 1200m at standard baud rates), strong anti-interference performance in industrial environments, and stable data transmission even under high electromagnetic interference conditions.



Residual Chlorine Sensor Details:



Model

ZW-YL-PR

Shell Material

ABS/PC alloy

Measuring principle

constant voltage method

Range and Resolution

0~2.000mg/L(HClO)

0.001

Accuracy

±5% or ±0.05mg/L,±0.3℃

Response time(T90)

<90s

Minimum Detectability

0.05mg/L

Calibration Method

two-point calibration

Cleaning Method

/

Temperature Compensation

automatic temperature compensation(Pt1000)

Output Method

RS-485(ModbusRTU)

Storage Temperature

-5~65℃

Working Conditions

5~50℃,≤0.2MPa,pH:4~9

Installation Method

Circulation pool installation,3/4NPT

Power Consumption

0.2W@12V

Power Supply

12~24VDC

Protection Level

IP68

Cable Length

5 meters, other lengths available


Packaging:


Single gross weight: 1.200 KG

Single package size: 37X26X5 cm




Product Description: 





Customer on-site examples: 




Application: 


RS485 residual chlorine (CL) sensors are widely used in outdoor scenarios such as aquaculture, drinking water disinfection, and sewage treatment to monitor residual chlorine concentration in real-time and ensure water quality safety. With stable RS485 (Modbus RTU) communication and strong anti-interference performance, they are particularly suitable for long-term monitoring needs in industrial environments and field applications.


applications of versatile Residual Chlorine Sensor



Certifications:


We are a leading solar-powered residual chlorine (CL) sensor manufacturer and exporter based in China, with over 10 years of specialized experience in water quality monitoring solutions. Our solar-powered residual chlorine (CL) sensors are engineered to deliver reliable, maintenance-free operation in remote and off-grid environments, and have earned CE and RoHS certifications to meet global safety and environmental standards.


Designed for durability and precision, our products are trusted by clients worldwide for applications including drinking water disinfection, aquaculture, sewage treatment, and industrial water quality management. With a focus on innovation and quality, we provide customized OEM/ODM services to meet diverse project requirements, ensuring seamless integration with RS485, LoRaWAN, and other industrial communication protocols.


Whether you need a standalone sensor or a complete water quality monitoring system, our team is dedicated to delivering high-performance solutions that enhance operational efficiency and ensure compliance with global water safety regulations.



Production Process:



factory of water ec sensor manufacturer



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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