Dragino DR-CL | Integrated Residual Chlorine Sensor (RS485)
The Dragino DR-CL is an integrated residual (free) chlorine sensor with RS485 Modbus output, for the Dragino WQS water-quality transmitter.
- Free chlorine: measures residual chlorine at 0.01 mg/L resolution.
- Two ranges: 0-2 mg/L (DR-CL-2ML) or 0-10 mg/L (DR-CL-10ML).
- Rugged: IP68, 0.6 MPa pressure rating, RS485 Modbus-RTU.
Dragino DR-CL | Integrated Residual Chlorine Sensor (RS485) - Chlorine Measuring Range: 0-2 mg/L is backordered and will ship as soon as it is back in stock.
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VAT & Business Purchases
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Secure Payment & Warranty
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- Warranty & Support: Consumer purchases are covered by the 2-year legal guarantee of conformity, and manufacturer warranty terms apply per brand. Our engineering team at shopioT provides technical support.
Delivery and Shipping
Delivery and Shipping
Tracked delivery within Cyprus by ACS Courier, and to all EU member states, the United Kingdom and Switzerland by FedEx International Priority. Orders ship from our warehouse in Nicosia, Cyprus, typically within 1–3 business days. Shipping cost is calculated at checkout by destination and parcel weight. See our Shipping Policy for rates and delivery times.
Dragino DR-CL | Integrated Residual Chlorine Sensor (RS485) - Chlorine Measuring Range: 0-2 mg/L is backordered and will ship as soon as it is back in stock.
Description
Description
The Dragino DR-CL is an integrated residual chlorine sensor that measures free (residual) chlorine in water and outputs readings over RS485 (Modbus-RTU). It is designed to connect to the Dragino WQS-series water quality transmitter (sold separately), which uploads the data to a LoRaWAN, NB-IoT or CAT-M1 server for remote monitoring.
It is available in two measurement ranges - DR-CL-2ML (0-2 mg/L) for low-chlorine applications such as drinking water, and DR-CL-10ML (0-10 mg/L) for higher-concentration applications - both with 0.01 mg/L resolution and an IP68, pressure-rated build for demanding water environments.
Key Features
Typical Applications
Available Models
| Model | Chlorine Range | Resolution |
|---|---|---|
| DR-CL-2ML | 0 - 2 mg/L | 0.01 mg/L |
| DR-CL-10ML | 0 - 10 mg/L | 0.01 mg/L |
Technical Integration
Frequently Asked Questions
What is the difference between DR-CL-2ML and DR-CL-10ML?
Only the measurement range: 0-2 mg/L versus 0-10 mg/L. All other specifications are identical.
Does it work on its own?
No - it is a probe that connects via RS485 to the Dragino WQS-series transmitter (sold separately), or to any Modbus-RTU controller.
How is it installed?
Via a flow channel with a recommended flow rate of 30-60 L/h, in water at 0-50 °C and pH 4-9.
Specifications
Specifications
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Primary Communication ProtocolRS485 / Modbus RTU
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Interfaces (I/O)RS485 (Modbus RTU)
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Configuration MethodModbus Commands
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Measurement Range
-
Measurement Accuracy
-
Measurement Resolution
-
Power SourceDC Input
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Power Input
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Power Consumption0.19 W
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Mounting OptionsPipe / Tube Mount
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IP RatingIP68
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Environment RatingIndustrial
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Operating Temperature0°C to +50°C
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Warranty2 Years
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Document Library
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