- 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 RS485 TSS Sensor with 135° Backlight for Water Quality Monitoring and Management
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 Temperature: 0–50℃ |
±5% equiv. KHP Temperature: ±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 PPM / 10,000 PPM / 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 | Temperature: -3℃ – 45℃ Flow Velocity: 0–500 cm/s Flow Direction: 0–359.9° |
±0.05℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions (FAQ)
QWhat measurement method does the TSS sensor use, and why is it reliable?
AThe sensor uses a 135° backlight scattering method compliant with the ISO7027 standard. This internationally recognized optical design ensures accurate and consistent TSS and turbidity measurements across a wide range of water types and conditions.
QWhat is the measurement range of the LMS-TSS100 sensor?
AThe LMS-TSS100 offers two selectable ranges: 0–50,000 mg/L for standard applications and 0–120,000 mg/L for high-concentration environments such as sludge treatment or mining runoff.
QDoes the TSS sensor require frequent manual cleaning?
ANo. The sensor is equipped with an automatic motorized brush self-cleaning mechanism that continuously removes fouling, air bubbles, and debris from the optical surface. This significantly reduces manual maintenance and ensures long-term measurement stability.
QCan the sensor be used outdoors or under direct sunlight?
AYes. The advanced fiber-optic light path design combined with specialized polishing techniques and software algorithms provides strong anti-interference and sunlight resistance, making it suitable for outdoor rivers, open reservoirs, and coastal monitoring stations.
QWhat communication protocol does the sensor support, and how is it powered?
AThe sensor outputs data via RS-485 using the MODBUS protocol, which allows easy integration with PLCs, data loggers, and SCADA systems. It operates on 9–24 VDC, with 12 VDC recommended for optimal performance.
QWhat industries and applications is this TSS sensor best suited for?
AThe sensor is widely used in industrial wastewater treatment, environmental water monitoring (rivers, lakes, coastal areas), drinking water systems, aquaculture, scientific research, and mining or construction site runoff monitoring — anywhere accurate suspended solids measurement is critical.