How to choose a gas sensor ? Alcohol sensor is semiconductor sensor for alcohol detection
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.
We've released the Seeed Gas Sensor Selection Guide, it will help you choose the gas sensor that best suits your needs.
|Dimensions||40mm x20mm x12mm|
|Power requirements||5 VDC @ ~120 mA (heater on)|
|Interface||1 TTL compatible input (SEL), 1 TTL compatible output (DAT)|
|Heater Voltage||0.9V ± 0.1V AC or DC|
|Heater Current||120 ± 20mA|
|Grove - Alcohol Sensor||1|