MQ3 Alcohol sensor module

Brief Description:

1 the long dimensions: 32mm X Width 22mm X 27mm high
2 the main chip: LM393, ZYMQ-3 gas sensor
3 the working voltage: DC 5 V
4 characteristics:
1, with the signal output instructions.
2, the dual signal output (analog output, and TTL level output)
3, TTL output valid signal is low. (low when the output signal light, can be directly connected MCU)
4, 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage.
5, the ethanol vapor with high sensitivity and good selectivity.
6, with a long service life and reliable stability
7, rapid response and recovery characteristics
5 Application:

For motor vehicle drivers and other non-drinking workers on-site inspection, but also for ethanol vapor detection of other places