MQ-3 alcohol sensor module

    100% New MQ3 MQ-3 Alcohol Ethanol Sensor Module Breathalyser Gas Checker Breath Detector  

Brief description:

(1)  .size: 32 mm X width 22 mm X high 27 mm

(2). the main chip: LM393, ZYMQ – 3 gas sensor

(3) .working voltage: dc 5 v

(4) .features:

1, has the signal output indicator.
2, duplex signal output (analog output and TTL level output)
3, TTL output effective signal for low level. (when output low electric light signal at ordinary times, can be directly joint SCM)
4, analog output 0 ~ 5 v voltage, concentration, the higher the higher the voltage.
5, TO Ethanol steam has good sensitivity.
6, with long service life and reliable stability
7, rapid response recovery characteristics

(5).application:

Used in automobile driving personnel and other no drunken homework personnel’s field detection, and can also be used to other places ethanol steam detection