- 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 RS485 TSS Sensor for Water Quality Monitoring - 135° Backlight, Industrial-Grade Performance
Product Parameters
| Product Name | Total Suspended Solid Sensor (TSS Sensor) |
| Measurement Method | 135° Backlight |
| Range | 0–50,000 mg/L | 0–120,000 mg/L |
| Accuracy | Less than ±10% of measured value (depending on sludge homogeneity) or 10 mg/L, whichever is greater |
| Power | 9–24 VDC (Recommended: 12 VDC) |
| Size | 50 mm × 200 mm |
| Material | 316L Stainless Steel |
| Output | RS-485, MODBUS Protocol |
Product Features
①
ISO7027-Compliant Optical Design
Utilizing a 135° backlight scattering method, the sensor adheres to the ISO7027 standard for turbidity and TSS measurement. This ensures global compatibility and reliable data accuracy across applications.
②
Anti-Interference & Sunlight Resistance
Advanced fiber-optic light path design, specialized polishing techniques, and software algorithms minimize signal drift. The sensor operates accurately even under direct sunlight, ideal for outdoor or open-air installations.
③
Automatic Self-Cleaning Mechanism
Equipped with a motorized brush, the sensor automatically removes fouling, bubbles, and debris from the optical surface, ensuring long-term stability and low maintenance.
④
Compact & Durable Construction
The 316L stainless steel body resists corrosion in aggressive environments, while its compact size (50 mm × 200 mm) simplifies integration into pipelines, tanks, or portable monitoring systems.
⑤
Temperature & Chromaticity Compensation
Built-in temperature compensation and immunity to chromaticity variations guarantee consistent readings in fluctuating water conditions.
Application
🏭 1. Industrial Wastewater Treatment
Monitor TSS levels in real time to optimize sludge dewatering, discharge compliance, and process efficiency.
🌊 2. Environmental Water Monitoring
Deploy in rivers, lakes, or coastal areas to assess sediment load, erosion, or pollution events.
💧 3. Drinking Water Systems
Ensure water clarity and safety by detecting suspended particles in treatment plants or distribution networks.
🐟 4. Aquaculture & Fisheries
Maintain optimal water quality by tracking suspended solids that affect aquatic health and equipment performance.
🔬 5. Research & Laboratories
Support high-precision studies on sediment transport, water clarity, or environmental impact assessments.
⛏️ 6. Mining & Construction
Monitor runoff water for regulatory compliance and mitigate environmental risks from suspended particulates.
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 µS/cm; 0–100 mS/cm TDS: 0–10,000 ppm |
±2.5% FS |
| Salinity/EC/TDS Sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm TDS: 0–60,000 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 Temp: 0–50℃ |
±5% equiv. KHP Temp: ±0.5℃ |
| TSS Sensor | LMS-TSS100 | 0–50,000 mg/L / 0–120,000 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 / 10,000 / 50,000 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 µg/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 | Temp: -3℃ – 45℃ Velocity: 0–500 cm/s Direction: 0–359.9° |
±0.05℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions (FAQ)
Q
What measurement method does the TSS sensor use, and why is it reliable?
The TSS sensor uses the 135° backlight scattering method, which complies with the ISO7027 international standard. This approach ensures high measurement accuracy, global compatibility, and reliable performance across a wide range of water quality applications.
Q
What is the measurement range of the LMS-TSS100 sensor?
The LMS-TSS100 TSS sensor offers two range options: 0–50,000 mg/L and 0–120,000 mg/L, making it suitable for both standard wastewater monitoring and high-concentration sludge applications.
Q
Does the sensor require frequent manual cleaning?
No. The sensor is equipped with an automatic self-cleaning mechanism featuring a motorized brush. It continuously removes fouling, air bubbles, and debris from the optical surface, significantly reducing maintenance requirements and ensuring long-term measurement stability.
Q
Can the TSS sensor be used outdoors or under direct sunlight?
Yes. Thanks to its advanced fiber-optic light path design, specialized polishing techniques, and software-based anti-interference algorithms, the sensor effectively resists sunlight interference and is well-suited for outdoor or open-air installations such as rivers, lakes, and open tanks.
Q
What communication protocol does the sensor support?
The sensor outputs data via RS-485 using the MODBUS protocol, making it easy to integrate with PLCs, data loggers, SCADA systems, and other industrial monitoring platforms.
Q
What industries and environments is this TSS sensor suitable for?
The sensor is designed for a broad range of applications, including industrial wastewater treatment, environmental water monitoring, drinking water systems, aquaculture, research laboratories, and mining or construction site runoff monitoring. Its 316L stainless steel body ensures durability in chemically aggressive environments.

















