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    Picture of Water Quality EC Sensor, 0~20/0~200/0~5000 μS/cm Picture of Water Quality EC Sensor, 0~20/0~200/0~5000 μS/cm Picture of Water Quality EC Sensor, 0~20/0~200/0~5000 μS/cm

    Water Quality EC Sensor, 0~20/0~200/0~5000 μS/cm

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    SKU: SUCH-WQS-DDM206A
    $555.89
    ● 0~20μS/cm, 0~200μS/cm, 0~5000μS/cm ● 0.01, 0.1 , 1 resolution ● RS485 (Modbus RTU) ● Electrode method
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    🚚 Free shipping
    🕒 Delivery date: 6-12 days
    🔁 30-day Returns
    Overview

    High-reliability conductivity sensors for water quality monitoring are for sale, offering a min detection limit of 2 μS/cm for highly sensitive detection of minute conductivity changes. Multi-range designs (0~20 / 0~200 / 0~5000 μS/cm) cover diverse applications from ultrapure water to general water bodies. The water quality sensor supports RS485 Modbus communication for seamless system integration. Its 3/4 NPT immersion-style installation is simple and user-friendly, while IP68 protection ensures stable underwater operation.

    Feature

    EC sensor feature

    • The water quality conductivity sensor employs an RS485 (Modbus RTU) standard communication interface for stable and efficient data transmission.
    • With an IP68 deep water protection rating, the water quality sensor maintains reliable operation even under long-term immersion, humidity, or harsh conditions.
    • Featuring a 3/4 NPT threaded structure, it supports both submersible and in-line installation, making it suitable for various water treatment equipment and complex field environments.
    • SUCH water quality sensors support simultaneous conductivity and TDS output, enabling comprehensive water quality monitoring to meet diverse requirements across environmental protection, industrial, and water treatment applications.

    Dimension (unit: mm)

    0~20 μS/cm

    EC sensor 0-20 μS/cm dimension

    0~200 μS/cm

    EC sensor 0-200 μS/cm dimension

    0~5000 μS/cm

    EC sensor 0-5000 μS/cm dimension

    Sensor Calibration

    • Zero Calibration: Rinse the water quality sensor with distilled water and blot dry with filter paper. Power on the sensor and place it vertically in air. Allow approximately 3 minutes for readings to stabilize before performing zero calibration. Refer to the appendix for calibration commands.
    • Slope Calibration: Immerse the EC sensor vertically in a standard solution (20% to full scale). Ensure the sensor is at least 5 cm from the bottom and 2 cm from the side walls of the container before performing slope calibration.

    Installation Method

    Water quality sensor installation method

    Note: Installing EC sensors is a highly meticulous task, improper installation methods will not yield satisfactory measurement data. When installing water quality sensors, carefully select the installation location and consider the mounting approach to prevent measurement data distortion.

    Specs
    Measurement Principle Electrode method
    Measurement Range 0~20 μS/cm (TDS 0~10 mg/L)
    0~200 μS/cm (TDS 0~100 mg/L)
    0~5000 μS/cm (TDS 0~3000 mg/L)
    Resolution 0~20 μS/cm: 0.01
    0–200 μS/cm: 0.1
    0–5000 μS/cm: 1
    Accuracy ±1.5% of reading, ±0.3°C
    Response Time T90<30s
    Min Detection Limit 2 μS/cm
    Calibration Method Two-point calibration
    Cleaning Method /
    Temperature Compensation Automatic temperature compensation (Pt1000)
    Output Method RS485 (Modbus RTU)
    Storage Temperature -5°C~65°C
    Operating Conditions 0 to 50°C, ≤0.6 MPa
    Mounting Method Submersible installation, 3/4 NPT
    Power Consumption 0.1W @ 12V
    Power Supply 12 to 24V DC
    Protection Rating IP68
    Housing Material ABS and ABS/PC alloy
    Cable Length 5m, other lengths customizable
    Application

    Water quality sensor for water treatment system

    Water Treatment System

    Water quality sensor for reservoir

    Reservoirs

    Water quality sensor for aquaculture

    Aquaculture

    FAQ
    ❯

    The water quality EC sensor determines conductivity levels by measuring the ability of ions in water to carry electrical current. Higher conductivity indicates greater concentrations of dissolved salts, inorganic substances, or impurities. Internal electrodes apply a weak voltage to the water, then calculate conductivity values by detecting changes in electrical current. This method offers fast response times and high accuracy, making it suitable for applications such as drinking water, industrial water, agricultural irrigation, and wastewater monitoring.

    ❯

    Yes. To ensure measurement accuracy, EC sensors must be periodically calibrated using standard conductivity solutions. Typically, one-point or two-point calibration is employed, selecting standard solutions of different concentrations based on the operating environment and precision requirements. During calibration, maintain electrode cleanliness and avoid air bubbles to enhance measurement stability. Increase calibration frequency for prolonged use or when environmental conditions change significantly.

    ❯

    Most water quality EC sensors support long-term submerged monitoring, making them ideal for water treatment systems, aquaculture, reservoirs, and industrial process monitoring. These conductivity sensors typically feature corrosion-resistant housing materials and waterproof ratings (e.g., IP68), enabling stable operation outdoors or in turbid water bodies. Regularly clean the electrodes to prevent biological fouling or debris buildup that could affect readings.

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