Industrial EC & TDS Sensor MODBUS-RTU (RS485)

SeeedSKU: 106428
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Sale price £157.40
incl. VAT
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Only 10 units left
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The EC & TDS Sensor measures conductivity, salinity, and TDS with automatic temperature compensation. With IP68 protection, RS485 output, and low power use, it’s perfect for reliable water quality monitoring.


The EC & TDS Sensor with hook-up wires measures electrical conductivity (EC), salinity, and total dissolved solids (TDS) in liquids, making it ideal for monitoring water quality in a wide range of applications.

Built to industry standards, the sensor includes automatic temperature compensation (ATC) to ensure accurate readings regardless of temperature changes. The electrode is IP68-rated, while the transmitter is IP65-rated, offering waterproof protection for reliable, long-term use in professional environments.

The sensor supports MODBUS-RTU RS485 communication and 0–2V analogue voltage output, allowing easy integration with data loggers such as the SenseCAP S2100 - LoRaWAN Data Logger, converters, and display systems. Compact, energy-efficient, and cost-effective, this EC & TDS sensor provides a dependable solution for continuous, accurate water quality monitoring.

Features

  • High Performance: High accuracy, fast response, and stability
  • Universal Protocol: MODBUS-RTU RS485 and 0~2V Analogue Voltage
  • Wide-range Power Supply: Can be powered with supply voltage within 3.9V ~ 30V
  • Strong Robustness: Suitable to be immersed in water for a long time, anti-corrosion, automatic temperature compensation

Specifications

Output Interface Analogue Voltage 0-2V (Output resistance ~0ohm)

RS485 Modbus-RTU
Power Supply 3.9-30V/DC
3.9-30V/DC
Power Consumption (Idle) 40mA@24V DC
40mA@24V DC
Power Consumption (Max) 80mA@24V DC
80mA@24V DC
Start-up Time < 2 seconds
EC Measurement Isolated Sensor Input, Range: 0 - 20000us/cm
Resolution: 0-10000us/cm, 10us/cm; 10000-20000us/cm, 50us/cm
Accuracy: 0-10000us/cm, ±3%; 10000-20000us/cm, ±5%
EC temperature compensation: 0-50°C
Temperature Measurement Range: -40~80°C,
Resolution: 0.1°C,
Accuracy: ±0.5°C
IP Ratings Electrode: IP68

Transmitter: IP65
Operating Temperature -40 ~ +85°C
Installation Electrode: 1/2"NPT screw threads

Transmitter: Mounting hole
Cable Length Power and Signal Cable: 2 meters or Customize
Electrode Cable: 10 meters
Dimension Electrode: 1/2"NPT screw threads
Transmitter: 128*70*42mm
Supplier Code 314990634

Wiring Diagram

Resources

Package Contents

  • 1x Industrial EC & TDS Sensor MODBUS-RTU RS485

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