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Home / Computer Hardware, Monitors & Peripherals / Conductivity Transmitter EC/TDS Sensor Module, RS485 Online Water Quality Monitoring for Hardness and Dissolved Solids, 3-Wire

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Brand COVELAI
Model Number CV-EC485-Pro
Communication Protocol RS485 Modbus RTU
EC Measurement Range 0-20000 μS/cm
TDS Measurement Range 0-10000 ppm
Accuracy ±1.5% Full Scale
Power Supply 12-24V DC
Operating Temperature 0 to 60°C
Protection Rating IP68 Waterproof
Cable Material PUR Shielded Cable

5 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Easy Modbus integration

Connected to my PLC without issues. Documentation was clear regarding register addresses.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Durable construction

Survived harsh wastewater environment without corrosion. The stainless steel probe is high quality.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Good value

Sensor works well for the price. The cable could be a bit longer for my specific setup, but extendable.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Accurate measurements

Compared readings with a handheld meter and they match closely. Great for online monitoring.

A

Anonymous

Jan 24, 2026

Rating: 5/5

Reliable for hydroponics

Stable readings over 3 months of continuous use in my nutrient tank. Very satisfied with the consistency.

5 FAQ

Q: Can this measure ultra-pure water conductivity?

A: This model is optimized for general water quality. For ultra-pure water, a specialized low conductivity sensor is needed.

Q: What is the warranty period for this module?

A: We provide a 12-month manufacturer warranty covering defects in materials and workmanship.

Q: How often does the sensor require calibration?

A: Calibration frequency depends on usage environment, but typically every 3-6 months is recommended.

Q: What is the maximum cable extension length?

A: You can extend up to 1000 meters using proper shielded twisted pair cable.

Q: Is this compatible with Arduino boards?

A: Yes, it is compatible when used with an RS485 to TTL shield or converter module.

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