- 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
China RS485 Two-Electrode Conductivity EC/TDS Sensor for Wastewater Treatment - Suppliers & Factory Solutions
| Product Name | Two-Electrode Conductivity Sensor/TDS Sensor |
| Range | CT: 0–9999 µS/cm; 0–100 mS/cm TDS: 0–10000 ppm |
| Accuracy | 2.5% FS |
| Power | 9–24 VDC (Recommend 12 VDC) |
| Material | Polymer Plastic |
| Size | 31 mm × 140 mm |
| Working Temperature | 0–50 ℃ |
| Cable Length | 5 m, can be extended according to user need |
| Sensor Interface Supports | RS-485, MODBUS Protocol |
| IP Rating | IP68 |
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①High Stability & Anti-Interference
Isolated power supply design and corrosion-resistant graphite electrode ensure stable performance in high-ionic or electrically noisy environments.
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②Wide Measurement Range
Covers conductivity from 10 µS/cm to 100 mS/cm and TDS up to 10000 ppm, suitable for diverse applications from ultrapure water to industrial wastewater.
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③Built-In Temperature Compensation
Integrated NTC sensor provides real-time temperature correction, enhancing measurement accuracy across varying conditions.
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④Single-Point Calibration
Simplifies maintenance with a single calibration point, achieving 2.5% accuracy across the full range.
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⑤Robust Construction
Polymer housing and G3/4 threaded design resist chemical corrosion and mechanical stress, ensuring longevity in submerged or high-pressure installations.
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⑥Seamless Integration
RS-485 output with Modbus protocol enables easy connectivity to SCADA, PLCs, and IoT platforms for real-time data monitoring.
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1Industrial Wastewater Treatment
Monitors conductivity and TDS in effluent streams to optimize desalination, chemical dosing, and compliance with discharge regulations.
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2Aquaculture Management
Tracks water salinity and dissolved solids to maintain optimal conditions for aquatic life, preventing over-mineralization.
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3Environmental Monitoring
Deployed in rivers and lakes to assess water purity and detect contamination events, supported by the sensor's corrosion-resistant design.
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4Boiler / Cooling Systems
Ensures water quality in industrial cooling circuits by detecting scaling or ionic imbalances, reducing equipment corrosion risks.
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5Hydroponics & Agriculture
Measures nutrient solution conductivity to optimize fertilization and irrigation efficiency in precision farming.
| 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: 0–10000 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 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 ℃ Velocity of flow: 0–500 cm/s Flow direction: 0–359.9° |
±0.05 ℃ ±1 cm/s or ±2% ±2° |
