
The Dragino DR-CL-2ML is an industrial residual chlorine probe designed for accurate low-range chlorine measurement in water quality monitoring applications.
It connects to the Dragino WQS-LB LoRaWAN® water quality transmitter via RS485 and provides reliable chlorine readings for drinking water systems, environmental monitoring, and wastewater treatment.
With a measurement range of 0–2 mg/L and high sensitivity, the DR-CL-2ML is ideal for applications that require precise control of low chlorine concentrations.
The probe features IP68 protection, a robust industrial design, and a 5-meter cable for flexible installation in tanks, pipelines, or open water.
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💡 Key Features
🧪 Residual Chlorine Measurement – Optimized for low-range chlorine (0–2 mg/L)
🔌 RS485 Interface – Direct connection to Dragino WQS-LB main unit
📏 High Resolution – 0.01 mg/L measurement resolution
🎯 High Accuracy – ±5% FS for reliable monitoring
🌊 IP68 Waterproof Probe – Suitable for continuous submersion
📐 5-Meter Cable – Flexible deployment in tanks and pipelines
🏭 Industrial Design – Ideal for drinking water and environmental applications
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🛠 Applications
💧 Drinking Water Monitoring
🏭 Industrial Water Treatment
🌱 Environmental Water Analysis
🚰 Chlorination Control Systems
🧫 Water Quality Research & IoT Monitoring
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📥 Product Downloads
• Measurement Range: 0 ~ 2 mg/L • Resolution: 0.01 mg/L • Accuracy: ±5% FS • Interface: RS485, 9600 baud • Power Supply: 7 ~ 30 V DC (via WQS interface) • Power Consumption: ~0.19 W • Protection Class: IP68 • Cable Length: 5 m • Operating Temperature: 0 °C ~ 60 °C • Probe Type: Residual Chlorine










