- 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
High-Performance China BOD TOC COD Sensor Factory - UV Absorption Water Quality Monitor for Suppliers
Product Parameters
| Product Name | COD Sensor |
| Measurement Method | Ultraviolet Absorption Method |
| Range |
COD: 0.1 ~ 1500 mg/L | 0.1 ~ 500 mg/L TOC: 0.1 ~ 750 mg/L BOD: 0.1 ~ 900 mg/L Turbidity: 0.1 ~ 4000 NTU Temperature: 0 to 50 ℃ |
| Accuracy | <5% equiv. KHP | Temperature: ±0.5 ℃ |
| Power | 9–24 VDC (Recommended: 12 VDC) |
| Material | 316L Stainless Steel |
| Size | 32 mm × 200 mm |
| IP Protection | IP68 |
| Output | RS-485, MODBUS Protocol |
Product 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.
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.
Digital RS485 Water Quality Sensors Technical Data
| Parameter | Model | Range | Accuracy |
| DO Sensor | LMS-DO10B | 0–20 mg/L, 0–60 ℃ | ±0.1–0.3 mg/L |
| DO Sensor | LMS-DO10C | 0–20 mg/L, 0–60 ℃ | ±0.3 mg/L |
| Trace DO Sensor | LMS-TDO100 | 0–2000 ppb, 0–50 ℃ | ±1 ppb |
| PH Sensor | LMS-PH100 | 0–14 pH | ±0.02 pH |
| ORP Sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS Sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm TDS: 0–10000 ppm |
±2.5% FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60000 ppm Salinity: 0–500.00 ppt |
±1.5% FS |
| 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 Temperature: 0–50 ℃ |
±5% equiv. KHP Temperature: ±0.5 ℃ |
| TSS Sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10% FS or 10 mg/L |
| Turbidity Sensor | LMS-TUR10L | 0–100 NTU | ±10% FS or 0.3 NTU |
| Turbidity Sensor | LMS-TUR10H | 0–3000 NTU | ±10% FS or 0.3 NTU |
| CO₂ Sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±5% FS |
| Ammonia Nitrogen Sensor | LMS-NH4100 | 0–1000 mg/L | ±5% FS |
| Ion Selective Sensor | LMS-ION100 | 0–1000 mg/L | ±5% FS |
| Oil in Water Sensor | LMS-OIL100 | 0–50 mg/L | 0–5 mg/L | ±3% FS |
| Chlorophyll Sensor | LMS-CHL100 | 0–500 ug/L | ±3% FS |
| Blue-Green Algae Sensor | LMS-BGA100 | 0–2,000,000 cells/ml | ±3% FS |
| Residual Chlorine Sensor | LMS-HCLO100 | 0–20.00 ppm | ±5% FS |
| Marine Current Sensor | LMS-Current100 | Temperature: -3 ℃ – 45 ℃ Velocity: 0–500 cm/s Direction: 0–359.9° |
±0.05 ℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions
Q What parameters can the LMS-COD100 COD sensor measure simultaneously?
The LMS-COD100 can simultaneously measure COD (0.1–1500 mg/L), TOC (0.1–750 mg/L), BOD (0.1–900 mg/L), turbidity (0.1–4000 NTU), and temperature (0–50 ℃) — all with a single probe, eliminating the need for multiple instruments.
Q How does the COD sensor handle turbid water without losing accuracy?
The sensor features an automatic turbidity compensation algorithm that corrects measurement errors caused by suspended particles. This ensures reliable COD and TOC readings even in highly turbid industrial or wastewater environments.
Q Does the COD sensor require regular reagent replacement or chemical maintenance?
No. The sensor uses a reagent-free ultraviolet absorption method, which completely eliminates the need for chemical reagents. Additionally, the integrated self-cleaning brush extends maintenance intervals to over 12 months, significantly reducing operational costs.
Q What communication interface does the COD sensor support, and is it compatible with IoT systems?
The sensor outputs data via RS-485 using the Modbus RTU protocol, which is widely supported by SCADA systems, PLCs, data loggers, and IoT cloud platforms. This makes integration into existing monitoring infrastructure straightforward and cost-effective.
Q Is the COD sensor suitable for outdoor or submerged long-term deployment?
Yes. The sensor is constructed from 316L stainless steel and carries an IP68 waterproof rating, making it fully suitable for continuous submerged deployment in rivers, lakes, wastewater channels, and industrial tanks under harsh environmental conditions.
Q Can this sensor be used in aquaculture and agricultural water monitoring applications?
Absolutely. The COD sensor is well-suited for aquaculture environments where dissolved organic matter (COD/BOD) and turbidity directly affect aquatic life health. It is also used in agricultural irrigation systems to monitor nutrient levels and contaminants in source water, supporting sustainable water management practices.