Introduction
This product is an industrial-grade water electrical conductivity sensor. The probe and housing are integrated into a single unit, resulting in a simple and convenient design for accurate measurement of water electrical conductivity. It features an electrode constant K=10, a measurement range of 10~20000 μS/cm, a resolution of 1 μS/cm, and an accuracy of ±1%FS. It also includes salinity and TDS conversion functions, allowing for the output of salinity and TDS data, meeting the needs of multi-parameter water quality monitoring.

The electrical conductivity sensor is equipped with an RS485 communication interface and supports the standard ModBus-RTU protocol. Tutorials are provided for connecting the sensor to Arduino development boards and DFRobot LoRaWAN, enabling quick setup of a test environment and real-time data monitoring. A built-in temperature sensor provides automatic temperature compensation, ensuring accurate and reliable data output under varying environmental conditions.

The electrical conductivity sensor is rigorously calibrated before leaving the factory and is ready for immediate use without further calibration. It also comes with a conductivity calibration solution, allowing users to quickly optimize measurement accuracy after prolonged use through register settings. With an overall waterproof rating of IP68, it can be submerged in water for extended periods, making it suitable for aquaculture, tap water monitoring, drinking water treatment, hydroponics, and agricultural irrigation applications.

Features
Simple calibration function, supports electrode calibration
Measurement range: 10~20000 μS/cm, resolution: 1 μS/cm, accuracy: ±1% FS
Features salinity and TDS conversion function, capable of outputting salinity and TDS data
Integrated probe housing design, waterproof rating up to IP68
Built-in temperature sensor, automatic temperature compensation to ensure measurement accuracy
RS485 communication interface, supports ModBus-RTU protocol
Applications
Aquaculture & Fisheries: Real-time monitoring of water purity and salinity ensures a healthy environment for aquatic life.
Tap Water & Drinking Water Treatment: Tracking raw and treated water quality guarantees safe drinking water standards.
Hydroponics & Soilless Cultivation: Accurate control of nutrient solution concentrations boosts crop yields.
Agricultural Irrigation & IoT: Integration with LoRa/WiFi modules enables the creation of large-scale soil and water monitoring networks.
Specification
Power Supply Voltage: 10~30V DC
Power Consumption: 0.4W
Communication Interface: RS485 (Standard ModBus-RTU protocol)
Measurement Range:
Conductivity: K=10: 10~20000 μS/cm
Temperature: -20°C~+60°C
Salinity: K=10: 0~11476ppm
TDS: K=10: 0~13400ppm
Measurement Accuracy:
Conductivity: ±1%FS
Temperature: ±0.5°C
Resolution:
Conductivity: 1 μS/cm
Temperature: 0.1°C
Temperature Compensation Range: -20°C~+60°C
Temperature Compensation Coefficient: Default 0.02
Response Time: <1S
Operating Temperature: -20°C~+80°C
Waterproof Rating: IP68
Pressure Resistance: 0.6MPa
Cable Length: 5m
Housing Material: Corrosion-resistant plastic
Shipping List
RS485 Water Quality Electrical Conductivity Sensor (K=10) x1
5m sensor cable x1
12880μS/cm conductivity calibration solution 100ml x1
Black protective mesh x1
Cable ties x2