MQ-3 Alcohol Sensor Module

Features
5V operation
Simple to use
LEDs for output and power
Output sensitivity adjustable
Analog output 0V to 5V
Digital output 0V or 5V
Low Cost
Fast Response
Stable and Long Life
Good Sensitivity to Alcohol Gas
Both Digital and Analog Outputs
On-board LED Indicator
Technical Data
Concentration : 0.05 mg/L ~ 10 mg/L Alcohol
Operating Voltage : 5V ±0.1
Current Consumption : 150mA
Operation Temperature : -10°C ~ 70°C
Pin Out
VCC – Input Power Supply
GND – Supply Ground
DO – Digital Output
AO – Analog Output
Applications
Vehicle Alcohol Detector
Portable Alcohol Detector
 
 
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