- 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 Suppliers Factory Multi-Parameter Water Quality Sensor for BOD, TOC, COD, Turbidity & Temperature Monitoring
Product Parameters
| Parameter | LMS-COD100H | LMS-COD100L |
| Product Name | COD Sensor | |
| 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: 0 to 50℃ |
COD: 0.1~500mg/L TOC: 0.1~200mg/L BOD: 0.1~300mg/L Turbidity: 0.1~1000 NTU Temperature: 0 to 50℃ |
| Measurement Method | Ultraviolet Absorption Method | |
| Accuracy | <5% equiv.KHP | Temperature: ±0.5℃ | |
| Power | 9–24 VDC (Recommended: 12 VDC) | |
| Material | 316L Stainless Steel | |
| Size | 32mm × 200mm | |
| IP Protection | IP68 | |
| Output | RS-485, MODBUS Protocol | |
| Certificate | CE, ISO9001 | |
Product Features
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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.
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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.
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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.
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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 | 0–20 mg/L, 0–60℃ | ±0.1–0.3 mg/L | 0.01 mg/L |
| 2 |  |
DO Sensor | LMS-DO10C | 0–20 mg/L, 0–60℃ | ±0.3 mg/L | 0.01 mg/L |
| 3 |  |
Trace DO Sensor | LMS-TDO100 | 0–2000 ppb, 0–50℃ | ±1 ppb | 1 ppb |
| 4 |  |
PH Sensor | LMS-PH100 | 0–14 pH | ±0.02 pH | 0.01 pH |
| 5 | |
ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV | 0.1 mV |
| 6 |  |
EC/TDS Sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm; TDS: 0–10000 ppm | ±2.5% FS | 1 uS/cm, 0.01 mS/cm, 1 ppm |
| 7 |  |
Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm; TDS: 0–60000 ppm; Salinity: 0–500.00 ppt | ±1.5% FS | 1 uS/cm, 0.01 mS/cm, 1 ppm, 0.01 ppt |
| 8 |  |
COD Sensor | LMS-COD100 | COD: 0.1–1500 mg/L; TOC: 0.1–750 mg/L; BOD: 0.1–900 mg/L; Turbidity: 0.1–4000 NTU; Temp: 0–50℃ | ±5% equiv.KHP; Temp: ±0.5℃ | 0.01 mg/L equiv.KHP |
| 9 |  |
TSS Sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10% FS or 10 mg/L | 0.1 mg/L or 1 mg/L |
| 10 |  |
Turbidity Sensor | LMS-TUR10L | 0–100 NTU | ±10% FS or 0.3 NTU | 0.01 NTU |
| 11 | |
Turbidity Sensor | LMS-TUR10H | 0–3000 NTU | ±10% FS or 0.3 NTU | 0.01 NTU |
| 12 |  |
CO2 Sensor | LMS-CO2100 | 2000 / 10000 / 50000 PPM | ±5% FS | 1 ppm |
| 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 | 0.01 ppm |
| 16 | |
Chlorophyll Sensor | LMS-CHL100 | 0–500 ug/L | ±3% FS | 0.1 ug/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 / 0.01 ppm |
| 19 |  |
Marine Current Sensor | LMS-Current100 | Temp: -3℃–45℃; Flow: 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 220 VAC | 7-inch Touch Screen |
Frequently Asked Questions
Q
What is the difference between the LMS-COD100H and LMS-COD100L models?
A
The LMS-COD100H is designed for high-range monitoring with COD up to 1500 mg/L, TOC up to 750 mg/L, BOD up to 900 mg/L, and turbidity up to 4000 NTU. The LMS-COD100L is suited for lower-concentration environments with COD up to 500 mg/L, TOC up to 200 mg/L, BOD up to 300 mg/L, and turbidity up to 1000 NTU. Both models share the same core technology and housing design.
Q
Does the COD sensor require chemical reagents during operation?
A
No. The LMS-COD100 series uses the ultraviolet absorption method for measurement, which is completely reagent-free. This eliminates secondary pollution risks, reduces ongoing operational costs, and makes the sensor ideal for environmentally sensitive monitoring locations.
Q
How does the sensor handle turbidity interference during COD measurement?
A
The sensor features an automatic turbidity interference compensation algorithm that actively corrects measurement errors caused by suspended particles in the water. It also incorporates anti-chloride-ion interference technology, ensuring COD readings remain accurate and stable even in complex water quality conditions.
Q
What communication protocol does the COD sensor support, and how can it be integrated?
A
The sensor supports RS-485 digital output with the Modbus RTU protocol, making it compatible with a wide range of PLCs, data loggers, SCADA systems, and IoT platforms. Integration is straightforward, and the sensor can deliver real-time readings within seconds of deployment.
Q
How often does the COD sensor need to be cleaned or maintained?
A
The sensor is equipped with an integrated self-cleaning brush that automatically removes biological fouling and debris from the optical surface. This significantly extends the maintenance interval and reduces the frequency of manual cleaning, resulting in lower overall operation and maintenance costs.
Q
Is the COD sensor suitable for outdoor and submerged deployment?
A
Yes. The sensor is constructed from 316L stainless steel and carries an IP68 waterproof rating, making it suitable for continuous submerged use in rivers, reservoirs, wastewater treatment plants, aquaculture ponds, and industrial process water systems. It operates reliably across a temperature range of 0 to 50℃.