You will be redirected to Alcohol Gas Sensor MQ-3 in a few seconds.

Home :: Sensors :: Biometrics :: Alcohol Gas Sensor MQ-3

Alcohol Gas Sensor MQ-3

Alcohol Gas Sensor MQ-3
(0 reviews)  

Description: 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 for BAC.


  • 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


SKU SEN-08880
Stock On Backorder
Ships In 1 to 2 weeks.
Weight 0.15 oz
Price: $4.95
Qty Out of stock
: *
: *
: *
Danger Shield
Hub Arm - Double (6")
Shaft Spacer - 3/8"
Sensor Cable - Electrode Pads (3 connector)
Solder Tip Polishing Bar
SparkFun IR Control Kit
Sewable LED Ribbon - 1m, 25 LEDs (White)
SOIC-28 to DIP-28 SMT Adapter (1.27 mm pitch, 300 mil body)
Heat Shrink - White 5' x 1/4"
There have been no reviews

Gift certificates