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Liquid Sensors

Gravity: Non-contact Turbidity Sensor

SKU: SEN0554

This non-contact turbidity sensor detects water quality via optics, measuring light transmittance/scattering rate in 40-50mm transparent containers and outputting analog values for turbidity. It has two infrared probes (oppositely installed, activated when liquid level is higher) and resists water/chemical corrosion due to non-contact design.

Front of non-contact turbidity measurement sensor module with USB and microcontroller-DFRobot product sku:SEN0554 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Value
    Operating Voltage 5V
    Operating Current <10mA(Max)
    Response Time <1s (VDD=5V Ta=25℃)
    Operating Temperature 5-60℃
    Storage Temperature 0-65℃
    Service Life 50000h (VDD=5V Ta=25℃)
    Communication Mode TTL

    Pinout

    Black=GND Blue=TX Red=VCC White=RX

    Recommended connection diagram

    Here we connect the sensor to the UNO board using Gravity: 4Pin Sensor Adapter and Gravity-4P Cable (PH2.0 to 2.54 DuPont female). The connections are as shown in the table below.

    Sensor Adapter UNO
    GND GND GND
    VCC VOUT VCC
    RX IO1 11(TX)
    TX IO2 12(RX)

    FAQ

    • How does the sensor output reflect the liquid turbidity?

      The relation between the sensor output and turbidity is shown as the curve below.

    Explore More Related Questions >

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