MQ-3 Alcohol Gas Sensor Module (Analog/Digital, 5V)
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 MicroohmCheapest | MQ-3 Alcohol Detector Gas Sensor Module | 80 EGP100 | View in store |
 Makers Electronics | MQ-3 Alcohol Gas Sensor Module | 80 EGP | View in store |
 Future Electronics | Alcohol Sensor MQ3 (Analog/Digital) | 80 EGP | View in store |
 RAM Electronics | MQ-3 Alcohol Ethanol Detection Sensor Module | 85 EGP | View in store |
Price history
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Lowest price recorded: 80 EGP
About this product
The MQ-3 is a metal-oxide gas sensor module that detects alcohol vapour with high sensitivity and lower sensitivity to benzine. It provides both analog and digital outputs, with a potentiometer to adjust the digital threshold, and is commonly used in breathalyser projects.
Specifications
- Target gas
- Alcohol (الكحول)
- Supply voltage
- 5 V
- Outputs
- Analog (AO) and digital (DO)
- Sensitivity adjustment
- Onboard potentiometer
- Pins
- VCC, GND, DO, AO
- Module size
- 40 x 20 mm
Frequently asked questions
What is the price of MQ-3 Alcohol Gas Sensor Module (Analog/Digital, 5V) in Egypt?
MQ-3 Alcohol Gas Sensor Module (Analog/Digital, 5V) currently costs between 80 and 85 EGP across 4 offers in Egypt.
Where can I buy MQ-3 Alcohol Gas Sensor Module (Analog/Digital, 5V) in Egypt?
MQ-3 Alcohol Gas Sensor Module (Analog/Digital, 5V) is available from Microohm, Makers Electronics, Future Electronics, and RAM Electronics. Compare the offers above to find the best price.
Can I use the MQ-3 as an accurate breathalyser?
No. It is a semi-quantitative sensor and is affected by temperature, humidity and other vapours. It needs a warm-up period and calibration against a reference instrument before any reading is meaningful.
How do I wire the MQ-3 to an Arduino?
Connect VCC to 5 V, GND to GND, AO to an analog input for a graded reading, and DO to a digital input for a threshold alert. Use the potentiometer to set the digital trigger level.
