This is an Arduino microphone or sound sensor which is typically used in detecting the loudness in ambient, an Arduino or Raspberry Pi can collect its output signal and actuate accordingly.
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DFRobot - To ease the difficult of using this analog sound
The arduino turbidity sensor detects water quality by measuring level of turbidity It is compatible with Arduino via Gravity interface It is able to
DFRobot Gravity: Analog Turbidity Sensor for Arduino
DFROBOT Gravity: Analog CO2 Gas Sensor : Industrial & Scientific
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Gravity: Analog Sound Sensor For Arduino - DFRobot
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DFROBOT Gravity: Analog Sound Sensor for Arduino : : Electronics
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Buy Arduino Sound Sensor and Analog Sound Sensor - page 1