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      MQ-3 Gas Sensor (Waveshare 9530)
      • MQ-3 Gas Sensor (Waveshare 9530)

      MQ-3 Gas Sensor (Waveshare 9530)

      WS-9530
      €6.42
      Tax included

      5.35 € tax excl.

      MQ-3 Gas Sensor (Waveshare 9530)

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      MQ-3 Gas Sensor (Waveshare 9530)

      Overview

      • Sensitive for alcohol, ethanol
      • Output voltage boosts along with the concentration of the measured gases increases
      • Fast response and recovery
      • Adjustable sensitivity
      • Signal output indicator

      Specifications

      • Power: 2.5V ~ 5.0V
      • Dimension: 40.0mm * 21.0mm
      • Mounting holes size: 2.0mm

      Applications

      • Car alcohol alarm
      • Breathalyser

      How to Use

      In the case of working with a MCU:

      • VCC ↔ 2.5V ~ 5.0V
      • GND ↔ power supply ground
      • AOUT ↔ MCU.IO (analog output)
      • DOUT ↔ MCU.IO (digital output)

      Photos


      Downloads

      Development resources: demo codes, schematic, datasheets, etc.
      Wiki: www.waveshare.com/wiki/MQ-3_Gas_Sensor


      Selection Guide

      Waveshare Electronics
      WS-9530

      Specific References

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