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Gravity Analog Alcohol Sensor (MQ3)

25-00016178
SEN0128
CompanyDFRobot Part NumberSEN0128
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€860
DFRobot
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This is an Arduino Alcohol sensor. It uses a MQ3 probe which can be used in a Breathalyser. It has a high sensitivity to alcohol and less sensitivity to Benzine.

The sensitivity is able to be adjusted by the potentiometer. The output is proportional to the density of gas. You can use analog reading to read the data from this sensor.

To ease the difficulty of using this sensor, a Gravity Interface is adapted to allow plug&play. The Arduino IO expansion shield is the best match for this sensor connecting to your Arduino microcontrollers.

  • Power supply: 5V
  • Interface type: Analog
  • High sensitivity to alcohol and small sensitivity to Benzine
  • Fast response and High sensitivity
  • Stable and long life
  • Simple drive circuit
  • Size: 36.4x26.6mm

  • Standard assembling structure (Times-of-5mm Center distance between four 3mm(0.12") mounting holes)
  • Easily recognitive interfaces of sensors ("A" for analog and "D" for digital)
  • Icons to simply illustrate sensor function 
  • High quality connector & potentiometer
  • Immersion gold surface
Warranty
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Company
DFRobot
Gross Weight
0.01kg
Sensor Type
  • Gas
Typical Input Voltage
  • 5VDC
Interface
  • Analog
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