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Multi-Parameter Water Quality Sensor for COD, BOD, TOC, Turbidity from China Suppliers and Factory

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Introducing the LMS-COD100 series water quality sensor from leading China suppliers, featuring models LMS-COD100H and LMS-COD100L. Utilizing advanced ultraviolet absorption technology, this innovative sensor enables integrated detection of five crucial water quality parameters: COD, TOC, BOD, turbidity, and temperature. Designed for seamless integration with various automation and IoT monitoring systems, the sensor supports digital RS-485 output and Modbus protocol. Its reagent-free design eliminates chemical pollution, significantly reducing operational costs. Additionally, the built-in self-cleaning brush prevents biological adhesion, effectively extending maintenance cycles. With automatic turbidity interference compensation, protection against chloride ion interference, rapid response times (within seconds), and high stability, the LMS-COD100 series delivers accurate and reliable data for diverse water quality monitoring applications. Trust in this factory-produced solution to enhance your water quality monitoring efforts.

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    Product Parameters

    Product Name COD Sensor
    Model LMS-COD100H LMS-COD100L
    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℃

    COD: 0.1~500mg/L

    TOC: 0.1~200mg/L

    BOD: 0.1~300mg/L

    Turbidity: 0.1 ~ 1000 NTU

    Temperature range: 0 to 50℃

    Measurement Method Ultraviolet absorption method
    Accuracy <5% equiv. KHP
    Temperature: ±0.5℃
    Power 9-24VDC (Recommend 12 VDC)
    Material 316L Stainless Steel
    Size 32mm * 200mm
    IP Protection IP68
    Output RS-485, MODBUS Protocol
    Certificate CE, ISO9001

    Product Features

    1 Dual-Model Multi-Parameter Detection

    Equipped with LMS-COD100H and LMS-COD100L two models to meet different range monitoring needs, a single sensor can simultaneously measure COD, TOC, BOD, turbidity and temperature, reducing the number of equipment deployment and the complexity of the monitoring system.

    2 Reagent-Free & Environmentally Friendly

    The whole detection process does not need to add any chemical reagents, which not only eliminates the risk of secondary pollution to the water body, but also saves the long-term reagent purchase cost, and is more in line with the environmental protection requirements of ecological monitoring.

    3 Intelligent Anti-Interference & High Precision

    It has automatic turbidity interference compensation function, which can eliminate the measurement error caused by suspended particles in water; at the same time, it is not affected by chloride ions, ensuring that the detection data is accurate and stable, with the accuracy of COD and other parameters less than 5% equiv.KHP.

    4 Self-Cleaning & Low Maintenance

    The integrated self-cleaning brush can automatically remove the biological attachments on the sensor surface, effectively extending the maintenance cycle, and the equipment has the characteristics of low failure rate, reducing the later operation and maintenance workload of users.

    5 Fast Response & Easy Integration

    The sensor can output detection results within tens of seconds, realizing real-time monitoring of water quality; it supports RS-485 digital output and Modbus protocol, which can be quickly connected to various industrial control systems and IoT platforms, with simple operation and strong compatibility.

    Application

    1 Municipal & Industrial Wastewater Treatment

    For municipal sewage treatment plants and industrial wastewater discharge points, the dual-model sensor can be selected according to the pollution degree of water body. It can monitor COD, BOD and other key indicators in real time to ensure that the effluent meets the discharge standards, and the turbidity and temperature data can also assist in optimizing the treatment process and reducing energy consumption.

    2 Ecological Water Body Monitoring

    In rivers, lakes and reservoirs, the reagent-free design of the sensor avoids damaging the ecological environment of the water body, and the multi-parameter detection can comprehensively reflect the organic pollution and turbidity changes of the water body, providing a basis for water ecological restoration and protection.

    3 Aquaculture Water Quality Management

    In fish and shrimp breeding ponds, the sensor can monitor the content of organic matter (COD/BOD) and turbidity of the water body in real time. When the index exceeds the standard, it can give an early warning in time, helping farmers adjust the water quality in time and maintain the healthy growth environment of aquatic products.

    4 Process Water Monitoring in Food & Pharmaceutical Industry

    In food processing, pharmaceutical production and other fields, the sensor can monitor the quality of process water to prevent organic pollution from affecting product quality, and its high stability and anti-interference performance can adapt to the complex water quality environment in the production workshop.

    COD Sensor Applications

    More Products

    Digital RS485 Water Quality Sensors Technical Data
    No. Picture Product Name Model Range Accuracy Resolution
    1 DO sensor LMS-DO10B DO sensor LMS-DO10B 0-20mg/L, 0-60℃ ±0.1-0.3mg/L 0.01mg/L
    2 DO sensor LMS-DO10C DO sensor LMS-DO10C 0-20mg/L, 0-60℃ ±0.3mg/L 0.01mg/l
    3 Trace DO sensor LMS-TDO100 Trace DO sensor LMS-TDO100 0-2000ppb, 0-50℃ ±1ppb 1ppb
    4 PH sensor LMS-PH100 PH sensor LMS-PH100 0-14pH ±0.02pH 0.01pH
    5 ORP sensor LMS-ORP100 ORP sensor LMS-ORP100 ±1000.0 mV ±0.2 mV 0.1mV
    6 EC/TDS sensor LMS-TDS102 EC/TDS sensor LMS-TDS102 CT: 0-9999uS/cm; 0-100mS/cm;
    TDS: 0-10000ppm
    ±2.5%FS 1uS/cm, 0.01mS/cm, 1ppm
    7 Salinity/EC/TDS sensor LMS-SAL104 Salinity/EC/TDS sensor LMS-SAL104 Conductivity: 0.1-500 mS/cm TDS: 0-60000ppm
    Salinity: 0-500.00ppt
    ±1.5%FS 1uS/cm, 0.01mS/cm, 1ppm, 0.01ppt
    8 COD sensor LMS-COD100 COD sensor LMS-COD100 COD: 0.1-1500mg/L
    TOC: 0.1-750mg/L
    BOD: 0.1-900mg/L
    Turbidity: 0.1-4000NTU
    Temperature range: 0-50 ℃
    ±5% equiv.KHP
    Temperature: ± 0.5 ℃
    0.01mg/L equiv.KHP
    9 TSS sensor LMS-TSS100 TSS sensor LMS-TSS100 0-50000mg/L / 0-120000mg/L ±10%FS or 10 mg/L 0.1mg/L or 1mg/L
    10 Turbidity sensor LMS-TUR10L Turbidity sensor LMS-TUR10L 0-100NTU ±10%FS or 0.3 NTU 0.01NTU
    11 Turbidity sensor LMS-TUR10H Turbidity sensor LMS-TUR10H 0-3000NTU ±10%FS or 0.3 NTU 0.01NTU
    12 CO2 sensor LMS-CO2100 CO2 sensor LMS-CO2100 2000PPM/10000PPM/50000PPM ±5%FS 1ppm
    13 Ammonia Nitrogen sensor LMS-NH4100 Ammonia Nitrogen sensor LMS-NH4100 0-1000 mg/L ±5%FS -
    14 Ion Selective sensor LMS-ION100 Ion Selective sensor LMS-ION100 0-1000 mg/L ±5%FS -
    15 Oil in Water sensor LMS-OIL100 Oil in Water sensor LMS-OIL100 0-50 mg/L ; 0-5 mg/L ±3%FS 0.01ppm
    16 Chlorophyll sensor LMS-CHL100 Chlorophyll sensor LMS-CHL100 0-500ug/L ±3%FS 0.1ug/L
    17 Blue-Green Algae sensor LMS-BGA100 Blue-Green Algae sensor LMS-BGA100 0-2000,000 cells/ml ±3%FS -
    18 Residual Chlorine sensor LMS-HCLO100 Residual Chlorine sensor LMS-HCLO100 0 - 20.00 ppm ±5%FS 0.001 / 0.01ppm
    19 Marine Current sensor LMS-Current100 Marine Current sensor LMS-Current100 Temperature: -3℃ - 45℃
    Velocity of flow: 0-500 cm/s
    Flow direction: 0-359.9°
    ±0.05℃
    ±1 cm/s or ±2%
    ±2°
    Temperature: 0.001℃
    Velocity of flow: 0.1 cm/s
    Flow direction: 0.1°
    Water Quality Analyzer Equipment
    No. Picture Product Name Model Size Power Display Output
    20 Portable DO Analyzer LMS-PA100 Portable DO Analyzer LMS-PA100 100mm*204mm < 0.5 W Power supply 7.5V, 5 batteries LCD display screen
    21 Multi-parameter Portable Water Analyzer LMS-PA100P Multi-parameter Portable Water Analyzer LMS-PA100P 220mm*120mm*100mm Rechargeable lithium battery with 220v to dc charging adapter LCD display screen
    22 Multi-parameter Touch-screen Online Analyzer LMS-OA200T Multi-parameter Touch-screen Online Analyzer LMS-OA200T 180mmx230mmx100mm AC power supply: 220 VAC 7-inch touch screen

    Frequently Asked Questions

    What parameters can the LMS-COD series sensor measure?

    The LMS-COD sensor is a multi-parameter detection instrument. Depending on the model, a single sensor can simultaneously measure COD (Chemical Oxygen Demand), TOC (Total Organic Carbon), BOD (Biochemical Oxygen Demand), Turbidity, and Temperature.

    What is the difference between LMS-COD100H and LMS-COD100L?

    LMS-COD100H is designed for higher range applications (COD up to 1500mg/L, TOC up to 750mg/L, BOD up to 900mg/L, and Turbidity up to 4000 NTU). LMS-COD100L is optimized for lower range monitoring (COD up to 500mg/L, TOC up to 200mg/L, BOD up to 300mg/L, and Turbidity up to 1000 NTU).

    Does this sensor require chemical reagents for testing?

    No, the sensor utilizes the ultraviolet absorption method, which is completely reagent-free. This eliminates secondary pollution risks and significantly reduces long-term operational and chemical purchase costs.

    How does the sensor handle turbidity and bio-fouling interference?

    The sensor features automatic turbidity interference compensation to eliminate measurement errors from suspended particles. Additionally, it is equipped with an integrated self-cleaning brush that automatically removes biological attachments on the optical surface.

    What communication protocol and output interface does the sensor support?

    The sensor supports RS-485 digital output and communicates via the standard Modbus protocol, enabling seamless integration with PLCs, industrial control systems, and IoT telemetry platforms.

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