Wholesale 5 in 1 UV Absorption BOD TOC TUR TEMP COD Sensor for Water Quality Monitoring Manufacturer and Supplier

5 in 1 UV Absorption BOD TOC TUR TEMP COD Sensor for Water Quality Monitoring

The Frankstar COD Sensor is a high-performance digital water quality monitoring probe based on advanced UV absorption spectroscopy technology. It enables accurate, real-time measurement of key water quality indicators including COD, BOD, TOC, turbidity, and water temperature.

Featuring standard RS-485 communication and Modbus RTU protocol, the sensor supports plug-and-play integration with data loggers, monitoring platforms, and automatic water quality monitoring systems. Adopting a fully reagent-free detection principle and built-in automatic cleaning brush, it effectively reduces operational costs, avoids secondary pollution, and achieves long-term low-maintenance field operation.

Equipped with intelligent turbidity compensation and fast response algorithms, the UV COD sensor delivers stable and repeatable measurement data even in complex and harsh water environments. It is widely applicable for wastewater treatment discharge monitoring, aquaculture water quality management, river and lake environmental supervision, and intelligent water resource monitoring projects.

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Features

1. Advanced Multi-Parameter Detection

Simultaneously measures COD, TOC, BOD, turbidity, and temperature with a single sensor, reducing equipment costs and complexity.

2. Robust Anti-Interference Design

Automatic turbidity compensation eliminates measurement errors caused by suspended particles, ensuring high accuracy even in turbid water.

3. Maintenance-Free Operation

Integrated self-cleaning brush prevents biofouling and extends maintenance cycles to over 12 months. Reagent-free design avoids chemical pollution and reduces operational costs.

4. Rapid Response & High Stability

Achieves results within tens of seconds with ±5% accuracy. Built-in temperature compensation ensures reliability across 0–50°C environments.

5. Industrial-Grade Durability

316L stainless steel housing and IP68 rating withstand corrosion, high pressure, and harsh aquatic conditions.

6. Seamless Integration

Supports RS-485 communication and Modbus protocol for easy connection to IoT platforms.

Product Paramenters

Product Name	COD Sensor
Measurement Method	Ultraviolet orption method
Range	COD：0.1~1500mg/L ; 0.1~500mg/L TOC：0.1~750mg/L BOD：0.1~900mg/L Turbidity: 0.1 ~ 4000 NTU Temperature range: 0 to 50℃
Accuracy	<5% equiv.KHP temperature:±0.5℃
Power	9-24VDC（Recommend12 VDC）
Material	316L Stainless Steel
Size	32mm * 200mm
IP Protection	IP68
Output	RS-485, MODBUS Protocol

Application

1. Wastewater Treatment Plants

Ideal for monitoring COD and BOD levels in industrial and municipal wastewater to ensure compliance with discharge regulations. The sensor’s turbidity and temperature measurements also aid in optimizing treatment processes, such as adjusting aeration or chemical dosing, to improve efficiency and reduce operational costs.

2. Environmental Monitoring

Used in rivers, lakes, and groundwater sites to track organic pollution trends. The reagent-free design makes it environmentally safe for long-term ecological studies, while multi-parameter capabilities provide a holistic view of water quality changes over time.

3. Industrial Process Control

In manufacturing sectors like food and beverage, pharmaceuticals, and electronics, the sensor monitors process water quality in real time, preventing contamination and ensuring product consistency. Its resistance to harsh chemicals and high-temperature environments makes it a reliable choice for industrial pipelines and cooling systems.

4. Aquaculture and Agriculture

Helps maintain optimal water conditions for fish farms by measuring dissolved organic matter (COD/BOD) and turbidity, which impact aquatic life health. In irrigation systems, it monitors nutrient levels and contaminants in source water, supporting sustainable agricultural practices.