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ALCOHOL GAS SENSOR MQ-3
Description
- 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
Sparkfun Documents:
- Datasheet
- Arduino Tutorial in Portuguese
- Wiring Example
- Arduino Breathalyzer
- Another Breathalyzer
- bildr Tutorial
Please review the datasheet for conversions to ppm then Wikipedia.org for BAC.
