MQ-3 Alcohol Sensor Module | Breathalyzer & Ethanol Detector
Original price was: ₵32.00.₵28.00Current price is: ₵28.00.
Build your own Breathalyzer. The MQ-3 is specifically designed to detect alcohol (Ethanol) vapors. It has high sensitivity and fast response time, making it the perfect sensor for “Smart Car” safety systems that prevent drunk driving.
-
Detects: Alcohol, Ethanol, Benzine.
-
Sensitivity: Adjustable via Blue Potentiometer.
-
Warm-up: Heater requires ~20 seconds.
-
Best For: Breathalyzers, Drunk Driving Alarms, and Industrial Monitoring.
2 in stock
The MQ-3 Alcohol Ethanol Detection Sensor is a high-precision gas sensor designed to detect alcohol vapors, ethanol, and gasoline fumes. Ideal for breathalyzers, industrial monitoring, and smart IoT applications, this sensor helps measure alcohol concentration in the air and is widely used for vehicle safety, DUI prevention, and air quality control.
🔹 Dual Output & Adjustable Sensitivity for Easy Integration ⚡
✔ Gas Detection: Alcohol, ethanol, benzene, smoke, and gasoline vapors.
✔ Dual Output: Analog (exact concentration levels) & Digital (threshold-based alerts).
✔ Adjustable Sensitivity: Built-in potentiometer for threshold tuning.
✔ Operating Voltage: 5V DC (Compatible with Arduino & Raspberry Pi).
✔ Preheat Time: 20 seconds for stable and accurate readings.
✔ Durable & Compact Design: Long-lasting sensor with quick response time.
🔹 Applications – Where to Use the MQ-3 Sensor 🛠️
✔ Breath Alcohol Detection – Build your own DIY breathalyzer.
✔ Smart Vehicle Safety – Detect alcohol levels for DUI prevention.
✔ Workplace & Industrial Safety – Monitor alcohol exposure in factories.
✔ Air Quality Monitoring – Measure ethanol and gasoline vapors in enclosed spaces.
✔ Smart Home Automation – Integrate with IoT safety and security systems.
🔹 How to Use & External Resources 📚
The MQ-3 sensor is easy to connect with Arduino, Raspberry Pi, ESP8266, and other microcontrollers. Simply power it with 5V, connect the analog or digital output, and start measuring alcohol levels.
📖 Helpful Resources for MQ-3 Alcohol Ethanol Detection Sensor:
✔ MQ-3 Datasheet & Specifications
✔ How to Interface MQ-3 with Arduino
✔ Raspberry Pi Alcohol Sensor Guide
✔ YouTube Tutorials – MQ-3 Alcohol Sensor Projects
🔹 Best Price & Availability in Ghana 🇬🇭
Looking for an MQ-3 Alcohol Ethanol Detection Sensor in Ghana? Whether for breathalyzers, industrial alcohol detection, or air quality monitoring, this sensor offers high accuracy and easy integration. Order today for fast delivery across Ghana!
Related products
16-in-1 Sensor Module Kit for Arduino, ESP32 & Raspberry Pi
Expand your project possibilities instantly. This value-packed kit contains 16 of the most popular sensors for home automation and robotics. Instead of buying modules individually, get everything you need in one box.
-
Includes: DHT11 Temperature, Relay, Ultrasonic, Motion Sensor, and 12 more!
-
Compatibility: Works perfectly with Arduino Uno, Mega, Nano, and Raspberry Pi.
-
Perfect For: Learning how to read data and control devices.
3×4 Matrix Membrane Keypad Module | 12 Button Numeric Pad
A simple and reliable input device for Arduino and DIY electronics projects. This flexible 12-key keypad provides only the essential keys (0–9, *, #)—no letters—making it ideal for numeric-only applications. It comes with a peel-and-stick adhesive backing for quick mounting on enclosures, panels, or doors.
-
Keys: 12 (Telephone-style layout)
-
Interface: 7 pins (2.54 mm standard pitch)
-
Mounting: Self-adhesive sticker backing
- Best for: Electronic door locks, vending machines, access control systems, phone dialers, and keypad-based Arduino projects.
433MHz RF Transmitter & Receiver Kit | Wireless Module for Arduino
Cut the cord. Go wireless. This kit includes one Transmitter and one Receiver. It is the simplest and most affordable way to send data wirelessly between two Arduinos up to 100 meters (with antenna).
-
Frequency: 433MHz
-
Includes: 1x Transmitter (Square), 1x Receiver (Rectangle)
-
Modulation: ASK (Amplitude Shift Keying)
-
Best For: Remote control cars, weather stations, and wireless switches.
HC-SR501 PIR Motion Sensor Module | Infrared Detector for Arduino
Build your own burglar alarm or automatic light. The HC-SR501 detects human and animal movement by sensing body heat. It is the standard motion sensor for Arduino security projects.
-
Range: Adjustable (3 to 7 meters)
-
Output: 3.3V Logic (High when motion detected)
-
Features: Adjustable Time Delay & Sensitivity
-
Ideal For: Automated lighting, security systems, and robotics.
LDR Photosensitive Sensor Module (4-Pin) | Light Detector
- Sensor Type: Light Dependent Resistor (Photoresistor).
-
Outputs: Digital (D0) & Analog (A0).
-
Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Automatic Lights, Sun Trackers, and Laser Tripwires.
Soil Moisture Sensor Module (YL-69) | Automatic Plant Watering System
Never forget to water your plants again. The Soil Moisture sensor measures the water content in soil. When the soil gets dry, the sensor output changes, allowing your Arduino to turn on a water pump automatically.
-
Outputs: Analog (Exact moisture level) & Digital (Threshold switch)
-
Adjustable: Set your "Dry" trigger point with the blue potentiometer.
-
Ideal For: Smart irrigation systems, greenhouse monitoring, and science projects.
Reviews
There are no reviews yet.