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
1-Channel 5V Relay Module | Low Level Trigger for Arduino
Control high voltage safely. This single-channel relay allows your Arduino to switch high-power devices like light bulbs, water pumps, or fans. It isolates your microcontroller from the high voltage using an internal switch.
-
Trigger: Low Level (Connect Signal to GND to turn ON).
-
Max Load: 250V AC / 10A.
-
Indicators: Red Power LED + Green Status LED.
-
Best For: Smart Lamps, Fan Control, and Simple Automation.
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.
BMP180 Digital Barometric Pressure & Altitude Sensor Module
Predict the weather or measure your altitude. The BMP180 is a high-precision sensor that measures air pressure and temperature. Because pressure changes with height, it also works as an incredibly accurate altimeter (±1 meter accuracy).
-
Measures: Pressure (Pa) & Temperature (C)
-
Interface: I2C (SDA/SCL)
-
Voltage: 3.3V to 5V Compatible
-
Best For: Weather stations, Drones, and GPS altitude correction.
DS18B20 Waterproof Temperature Sensor Probe | Stainless Steel Digital Thermometer
Measure liquid temperature with digital precision. This is the waterproof version of the famous DS18B20 sensor. Encased in a stainless steel tube, it is perfect for measuring water, soil, or air temperature in harsh environments.
-
Range: -55°C to +125°C
-
Interface: 1-Wire Digital (Requires only 1 pin)
-
Cable Length: 1 Meter
-
Best For: Aquariums, boilers, soil temperature, and cold chain monitoring.
DS3231 RTC Real-Time Clock Module
The DS3231 is a highly accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO).
-
Chip: Maxim DS3231 (High Precision)
-
Memory: Built-in AT24C32 32K I2C EEPROM
-
Voltage: 3.3V – 5.5V DC
-
Interface: I2C (SCL, SDA)
-
Battery Backup: Holds time when power is off (Coin cell slot included)
-
Accuracy: Much higher than the standard DS1307
IRF520 MOSFET Driver Module (0-24V) | PWM Motor & LED Controller
-
Max Load: 24V DC / < 5A.
-
Control Voltage: 3.3V or 5V (PWM Compatible).
-
Output: Pulse Width Modulation (Speed/Dimming control).
-
Best For: LED Strips, Small DC Fans, and Solenoids.
SW-420 Vibration Sensor Module | Adjustable Impact & Shake Switch
- Sensor Type: SW-420 (Normally Closed).
- Output: Digital (High/Low).
- Sensitivity: Adjustable via Blue Potentiometer.
- Best For: Anti-Theft Alarms, Smart Cars, and Impact Detection.
Reviews
There are no reviews yet.