MQ-3 alcohol sensor(เซนเซอร์วัดแอลกอฮอล์)

Description:

Main chip: LM393, MQ-3 gas sensor.
Operating voltage: DC 3-5V.
with the signal output indication.
the dual signal output (analog output, and TTL level output).
TTL output valid signal is low level, can connected to microcontroller directly.
0 ~ 5V analog output voltage, the higher concentration the higher voltage.
with high sensitivity and good selectivity for ethanol vapor.
with a long service life and reliable stability.
rapid response and recovery characteristics.

Application:


For motor vehicle drivers and the other non-drinking workers on-site inspection, also for other places of ethanol vapor detection, alcohol detection range: 10 ~ 1000ppm