- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
China Factory Suppliers Multi-Parameter Water Quality Sensor for COD, TOC, BOD, Turbidity, and Temperature Monitoring
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.
More Products
| Digital RS485 Water Quality Sensors Technical Data | ||||||
| No. | Picture | Product Name | Model | Range | Accuracy | Resolution |
| 1 |  |
DO sensor | LMS-DO10B | 0-20mg/L, 0-60℃ | ±0.1-0.3mg/L | 0.01mg/L |
| 2 |  |
DO sensor | LMS-DO10C | 0-20mg/L, 0-60℃ | ±0.3mg/L | 0.01mg/L |
| 3 |  |
Trace DO sensor | LMS-TDO100 | 0-2000ppb, 0-50℃ | ±1ppb | 1ppb |
| 4 |  |
PH sensor | LMS-PH100 | 0-14pH | ±0.02pH | 0.01pH |
| 5 | |
ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV | 0.1mV |
| 6 |  |
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 | 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: 0.1-1500mg/L; TOC: 0.1-750mg/L; BOD: 0.1-900mg/L; Turbidity: 0.1-4000NTU; Temp: 0-50℃ | ±5% equiv.KHP; Temp: ±0.5℃ | 0.01mg/L equiv.KHP |
| 9 |  |
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 | 0-100NTU | ±10%FS or 0.3 NTU | 0.01NTU |
| 11 | |
Turbidity sensor | LMS-TUR10H | 0-3000NTU | ±10%FS or 0.3 NTU | 0.01NTU |
| 12 |  |
CO2 sensor | LMS-CO2100 | 2000PPM / 10000PPM / 50000PPM | ±5%FS | 1ppm |
| 13 |  |
Ammonia Nitrogen sensor | LMS-NH4100 | 0-1000 mg/L | ±5%FS | — |
| 14 | |
Ion Selective sensor | LMS-ION100 | 0-1000 mg/L | ±5%FS | — |
| 15 | |
Oil in Water sensor | LMS-OIL100 | 0-50 mg/L ; 0-5 mg/L | ±3%FS | 0.01ppm |
| 16 | |
Chlorophyll sensor | LMS-CHL100 | 0-500ug/L | ±3%FS | 0.1ug/L |
| 17 | |
Blue-Green Algae sensor | LMS-BGA100 | 0-2,000,000 cells/ml | ±3%FS | — |
| 18 |  |
Residual Chlorine sensor | LMS-HCLO100 | 0 - 20.00 ppm | ±5%FS | 0.001 / 0.01ppm |
| 19 |  |
Marine Current sensor | LMS-Current100 | Temp: -3℃~45℃; Velocity: 0-500 cm/s; Direction: 0-359.9° | ±0.05℃; ±1 cm/s or ±2%; ±2° | 0.001℃; 0.1 cm/s; 0.1° |
| Water Quality Analyzer Equipment | ||||||
| No. | Picture | Product Name | Model | Size | Power | Display Output |
| 20 |  |
Portable DO Analyzer | LMS-PA100 | 100mm×204mm | <0.5W; 7.5V, 5 batteries | LCD display screen |
| 21 |  |
Multi-parameter Portable Water Analyzer | LMS-PA100P | 220mm×120mm×100mm | Rechargeable lithium battery with 220V DC charging adapter | LCD display screen |
| 22 |  |
Multi-parameter Touch-screen Online Analyzer | LMS-OA200T | 180mm×230mm×100mm | AC power supply: 220 VAC | 7-inch touch screen |
Frequently Asked Questions (FAQ)
Q What is the difference between the LMS-COD100H and LMS-COD100L models?
The LMS-COD100H is designed for high-range monitoring, supporting COD up to 1500 mg/L and turbidity up to 4000 NTU, making it suitable for heavily polluted industrial wastewater. The LMS-COD100L is optimized for lower concentration environments with a COD range up to 500 mg/L and turbidity up to 1000 NTU, ideal for ecological water bodies and aquaculture applications.
Q Does the COD sensor require chemical reagents during operation?
No. The COD sensor uses an ultraviolet absorption method for detection, which is completely reagent-free. This eliminates the risk of secondary chemical pollution to water bodies and significantly reduces long-term operating costs associated with reagent procurement and disposal.
Q How does the self-cleaning function work and how often does it operate?
The sensor is equipped with an integrated self-cleaning brush that automatically sweeps the optical sensing surface to remove biological fouling, algae, and suspended particle deposits. This automatic mechanism extends the maintenance cycle considerably and reduces manual cleaning requirements, lowering the overall operation and maintenance workload.
Q What communication protocol does the COD sensor support, and how can it be integrated into existing systems?
The sensor supports RS-485 digital output with the Modbus protocol, which is widely compatible with industrial control systems, SCADA platforms, and IoT gateways. It can be quickly integrated into most existing water quality monitoring networks without complex configuration, ensuring easy deployment and strong compatibility.
Q Is the COD sensor suitable for outdoor and submerged deployment?
Yes. The sensor features an IP68 waterproof rating, meaning it is fully protected against continuous submersion in water. Its housing is made of 316L stainless steel, which offers excellent corrosion resistance, making it suitable for long-term deployment in rivers, reservoirs, wastewater treatment plants, and other harsh outdoor environments.
Q Can the sensor accurately measure COD in water with high turbidity or chloride ion content?
Yes. The sensor incorporates an automatic turbidity interference compensation algorithm that corrects measurement errors caused by suspended particles. Additionally, it is specifically designed to be unaffected by chloride ions, ensuring that COD, TOC, and BOD readings remain accurate and stable even in complex water quality conditions with high turbidity or salinity.