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Contact Electrode Method TDS Sensor

Product Description
Application
Material
Specification Parameters
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【Product Description】

The TDS water quality sensor is based on the conductivity measurement principle, utilizing the electrical conductivity of dissolved solids to determine TDS values. It features high accuracy, stability, and fast response, making it suitable for drinking water, industrial water, and wastewater treatment. The sensor supports RS485 (MODBUS-RTU) output, offers IP68 waterproof protection and automatic temperature compensation, and ensures easy installation with flexible maintenance cycles—meeting diverse water quality monitoring needs.

【Applications】

Designed for environmental water quality monitoring and testing of water samples with both high and low ionic strength, this sensor meets the requirements of most industrial and environmental applications for online conductivity, salinity, and TDS measurement.



【Material】

ABS



【Specification Parameters】

Model LS TDS-1EDNOG
Measurement Principle Contact electrode method
Signal Mode RS485 (MODBUS-RTU)
Conductivity Measurement Range (0~5000 μS/cm)(0~10000 μS/cm)(0-200mS/cm)
Conductivity Resolution 1μS/cm 0.01mS/cm
Salinity Measurement Range 0-10000ppm 0-200ppt
Salinity Resolution 1ppm 0.01ppt
TDS Measurement Range 0-10000ppm 0-200ppt
TDS Resolution 1ppm 0.01ppt
Measurement Accuracy ±1.5%; ±0.1°C
Response Time Approximately 30s (98% stationary liquid)
Housing Material ABS
Temperature Compensation Automatic Temperature Compensation (M1820Z)
Cable Length Standard with 5 meters
Supply Voltage 12-24VDC (0.4W @ 12V)
Measurement Environment Temperature 0~50°C (non-freezing), < 0.2MPa
Waterproof Rating IP68
Installation Method Immersion installation, NPT 3/4 thread


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