MQ-2 Gas Sensor Module – Versatile Gas and Smoke Detection for Arduino, IoT, and Embedded Projects

MQ-2 Gas Sensor Module – Versatile Gas and Smoke Detection for Arduino, IoT, and Embedded Projects

The MQ-2 Gas Sensor Module is a widely used sensor for detecting combustible gases and smoke, including LPG, methane, propane, hydrogen, alcohol, and smoke particles. It provides both analog and digital outputs, making it easy to interface with Arduino, ESP32, Raspberry Pi, and other microcontrollers.

With a sensitive SnO2 (tin dioxide) sensor and an onboard comparator, this module offers fast response, wide detection range, and simple calibration. Ideal for indoor air quality monitoring, gas leak detection, fire alarm systems, and DIY electronics projects.

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✅ Key Features:

• 🛢️ Detectable Gases: LPG, propane, methane, hydrogen, alcohol, smoke, etc.

• 🔌 Outputs:

  • Analog Output for precise gas concentration measurement

  • Digital Output with adjustable threshold (via onboard potentiometer)

• ⚡ Operating Voltage: 5V DC

• 📐 Compact Module: Easy to integrate with breadboards and projects

• 🔧 Adjustable Sensitivity: Onboard potentiometer for setting detection threshold

• 🔴 Indicator LEDs: Power and digital output status indicators

• 🧰 Compatible With: Arduino, ESP32, ESP8266, Raspberry Pi, STM32, etc.

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🧰 Applications:

• Gas leakage detection systems

• Smoke and fire alarms

• Home and industrial air quality monitors

• Kitchen and household safety devices

• IoT environmental sensing projects

• Educational electronics experiments

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🔗 Why Choose MQ-2 Gas Sensor Module?

The MQ-2 module offers a reliable and cost-effective solution for detecting multiple gases and smoke in various environments. With both analog and digital outputs, it supports a wide range of applications from simple alarms to advanced data monitoring systems.

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📦 Package Includes:

• 1 x MQ-2 Gas Sensor Module

Note: Allow sensor to preheat (burn-in) for 24–48 hours for optimal performance and accuracy.

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🔍 Keywords

MQ-2 gas sensor Pakistan, LPG smoke detector module, MQ-2 Arduino sensor, combustible gas detection module, MQ2 sensor ESP32, MQ-2 air quality monitoring, gas leak detection sensor.