Alcohol sensor MQ-3 - semiconductor

Index: DNG-00061 EAN: 5904422358914

Alcohol sensor with analog output. It measures the content of alcohol, for example, in the exhaled air.

Alcohol sensor MQ-3 - semiconductor
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Manufacturer: Pololu

Product description: alcohol sensor MQ-3

The sensor determines the concentration of alcohol in the air, the result can be obtained measuring the voltage on the analog output. Through this device, the user can create their own breathalyzer. Sensor can be used, for example, in the module of Arduinoor board from the familySTM32 Discovery.


Measurement range from 0.04 mg/L to 4 mg/L, it allows you to use it as the breathalyzer


Ratio: 0.1 mg/L = 0,21‰.


Sensor MQ-3 can operate in the temperature range: -10-50°C and consumes no more than 150mA at 5V power supply. More information is contained indocumentationof the sensor.

Podstawka pod czujnik MQ-3

In our offer is alsothe stand facilitating the use

Specification of the sensor MQ-3

  • The supply voltage of 5 V
  • Maximum current consumption: 150 mA
  • Measuring range: 0.04 mg/L 4 mg/L
  • Mounting: THT

Czujnik alkoholu MQ-3

The product is compatible with Arduino

The designof the Breathalyzer on the Arduinoandsample code(bildr) together with the connection diagram are available online

Package width 5 cm
Package height 7 cm
Package depth 1.5 cm
Package weight 0.002 kg

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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