Alcohol Gas Sensor MQ-3

€5.25 *

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  • Sparkfun
  • EXP-R05-183
  • SEN-08880
  • CN
  • 90271010
  • 0.004
This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like... more
This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC.

Please review the datasheet for conversions to ppm then Wikipedia.org for BAC. http://en.wikipedia.org/wiki/Blood_Alcohol_Content

Features:
  • 5V DC or AC circuit
  • Requires heater voltage
  • Operation Temperature: -10 to 70 degrees C
  • Heater consumption: less than 750mW
Dimensions:
  • 16.8mm diameter
  • 9.3 mm height without the pins
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