Product Introduction

The KH.SZ-DDM Industrial Online Electrical Conductivity (EC) Sensor is a high-precision digital conductivity meter designed for continuous monitoring of water quality in environmental, industrial, and chemical process applications. Using the electrode method combined with a single-chip microcomputer digital circuit, it provides accurate real-time measurements of water conductivity with automatic temperature compensation. Its robust IP68-rated housing allows submersion up to 60 meters, making it ideal for rivers, reservoirs, chemical tanks, and wastewater treatment facilities. The sensor supports RS-485 Modbus RTU output for seamless integration with PLC, DCS, SCADA, or other industrial monitoring systems.

Key Features

• High-precision measurement: Electrolytic conductivity method ensures accurate readings across 0–200/500 mS/cm range.
• Automatic temperature compensation: Maintains accuracy between 0–60°C for stable results.
• Fast response: Measurement stabilizes in under 30 seconds.
• Excellent repeatability and low drift: Zero drift ±1%, range drift ±1%, resolution 0.01 μS/cm.
• Long-term stability: Voltage stability ±1%, actual water sample comparison ±1%.
• Durable and waterproof: IP68-rated, submersible up to 60 meters.
• Easy integration: RS-485 Modbus RTU output compatible with industrial monitoring platforms.

Application Scenarios

• Environmental water quality monitoring in rivers, lakes, and reservoirs
• Industrial process control in chemical, pharmaceutical, and food production
• Water treatment plants and wastewater monitoring
• Monitoring of salt solutions, brine, and industrial liquids
• Laboratory, tank, and pipeline conductivity measurement

Technical Specifications