Grove - Alcohol Sensor
Grove - Alcohol Sensor

Description of product


Grove - Alcohol Sensor is a complete alcohol sensor module for Arduino or Seeeduino. It is built with MQ303A semiconductor alcohol sensor. It has good sensitivity and fast response to alcohol. It is suitable for making Breathalyzer. This Grove implements all the necessary circuitry for MQ303A like power conditioning and heater power supply. This sensor outputs a voltage inversely proportional to the alcohol concentration in air.

Technical Details

Dimensions40mm x 20mm x 12mm
WeightG.W 9g    
Power requirements5 VDC @ ~120 mA (heater on)
Detection GasAlcohol
Concentration20-1000ppm Alcohol
Interface1 TTL compatible input (SEL), 1 TTL compatible output (DAT)
Heater Voltage0.9V ± 0.1V AC or DC
Heater Current120 ± 20mA

Part List

Grove - Alcohol Sensor1
Grove Cable1