DFRobot Gravity: Analog Turbidity Sensor For Arduino

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The arduino turbidity sensor detects water quality by measuring level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. You may also check Liquid Sensor Selection Guide to get better familar with our liquid sensor series.

This arduino turbidity sensor have both analog and digital signal output modes. You can select the mode according to the MCU as threshold is adjustable in digital signal mode.

Turbidity sensors can be used in measurement of water quality in rivers and streams, wastewater and effluent measurements, sediment transport research, and laboratory measurements.


    • Operating Voltage: 5V DC
    • Operating Current: 40mA (MAX)
    • Response Time: <500ms
    • Insulation Resistance: 100M (Min)
    • Output Method: Analog
    • Analog output: 0-4.5V
    • Digital Output: High/Low level signal (you can adjust the threshold value by adjusting the potentiometer)
    • Operating Temperature: 5℃~90 ℃
    • Storage Temperature: -10℃~90℃
    • Weight: 30g
    • Adapter Dimensions: 38mm*28mm*10mm/1.5inches *1.1inches*0.4inches



    • 1x Turbidity sensor adapter
    • 1x Turbidity sensor probe
    • 1x Turbidity sensor cable
    • 1x Gravity analog sensor cable

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