MQ-3 Alcohol Sensor Module for Arduino – Breath Gas Detector with Ethanol Detection

Description

MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection for Arduino New
Product parameters:
1. Dimensions: 32mm X22mm X27mm length X width X height
2. Main chip: LM393, ZYMQ-3 gas sensor
3. Working voltage: DC 5V
Features:
1. With signal output indication.
2. Dual signal output (analog output and TTL level output)
3. TTL output valid signal is low level. (When the output is low level, the signal light is on, and it can be directly connected to the microcontroller) 4. The analog output voltage is 0~5V, the higher the concentration, the higher the voltage.
5. It has high sensitivity and good selectivity to ethanol vapor.
6. It has a long service life and reliable stability
7. Fast response and recovery characteristics
Applications:
Used for on-site detection of motor vehicle drivers and other workers who are strictly prohibited from drinking, and also used for ethanol vapor detection in other places