Gravity: Analog Turbidity Sensor For Arduino

DFRobotSKU: SEN0189
Sale price £9.50
incl. VAT
excl. VAT
Only 8 units left

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The Arduino turbidity sensor detects water quality by measuring the 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.  This turbidity sensor has both analog and digital signal output modes. You can select the mode according to the MCU as the threshold is adjustable in digital signal mode.

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

Note: The top of the probe is not waterproof!

I/O Expansion Shield is NOT included

Connection Example - DFRduino UNO R3


  • 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°C~90°C
  • Storage Temperature: -10°C~90°C
  • Weight: 30g
  • Adapter Dimensions: 38mm x 28mm x 10mm


Package Contents

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

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