Alcohol Sensor Module - MQ3

*** infor can be found here

• 2-way signal output (analog output, and TTL-level output)
• TTL output active signal is low. (can be directly connected to the microcontroller)
• 0 ~ 5V analog output voltage, (the higher the concentration the higher the voltage)
• ethanol/alcohol vapor has a good sensitivity.
• long life and reliable stability
• Fast response/recovery characteristics