MQ-3 Alcohol Gas Sensor Module
- Introducing the MQ-3 Alcohol Gas Sensor Module, featuring the highly sensitive MQ3 sensor designed to detect alcohol gas concentrations ranging from 0.05 mg/L to 10 mg/L. This affordable semiconductor sensor uses SnO2 as its sensitive material, with conductivity increasing in response to higher alcohol gas concentrations.
Features:
- High Sensitivity:Â The MQ-3 sensor module offers high sensitivity to alcohol, ensuring accurate detection of alcohol gas concentrations.
- Dual Outputs:Â Provides both digital and analog outputs, offering flexibility in interfacing with microcontrollers, Arduino boards, Raspberry Pi, and other devices.
- Signal Output Indicator:Â Features a signal output light indicator for easy monitoring of sensor operation.
- Simple Drive Circuit:Â Requires only one resistor for the drive circuit, simplifying the interfacing process.
- Fast Response Time:Â Delivers rapid response and recovery features, ensuring timely detection of alcohol gas presence.
Specifications:
| Operating Voltage | 5V ±0.1 |
|---|---|
| Current Consumption | 150mA |
| Operation Temperature | -10°C ~ +70°C |
| Concentration | 0.05 mg/L ~ 10 mg/L Alcohol |
| Load resistance | 200 kΩ |
Applications:
- Breathalyzer devices
- Alcohol detection systems
- Safety and security applications
- Environmental monitoring








