Product features

1,Size: 35 mm X24mm X26mm length * width * height

2,the main chip: LM393, MQ - 3 alcohol sensor module

3,working voltage: 3.0-5.5 V DC

Features:

1, a signal output instructions;

2, two-way signal output; (TTL level output and analog output)

3, TTL output valid signal for low level, can receive directly receive microcontroller IO port;

4, analog 0 ~ 5 v voltage, the higher the concentration, the higher the voltage;

5, to ethanol steam of high sensitivity and good selectivity;

6, with long service life and reliable stability;

7, rapid response recovery features;