Alcohol Gas Sensor - MQ-3
SEN-08880
Alcohol Gas Sensor - MQ-3
SKU: SEN-08880
$5.50
In stock
SKU
SEN-08880
This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer.
Product Overview
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.
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
Documents:
- [Datasheet](https://cdn.sparkfun.com/datasheets/Sensors/Biometric/MQ-3 ver1.3 - Manual.pdf)
- Arduino Tutorial in Portuguese
- Wiring Example
- Arduino Breathalyzer
- Another Breathalyzer
- bildr Tutorial
Hookup Accessories
Features & Specs
- 5V DC or AC circuit
- Requires heater voltage
- Operation Temperature: -10 to 70 degrees C
- Heater consumption: less than 750mW* 16.8mm diameter
- 9.3 mm height without the pins

Alcohol Gas Sensor - MQ-3
$5.50
SEN-08880
Stock and Customer Discounts
$5.5 retail price.