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MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module
The MQ-2 Gas Sensor Module is a versatile gas sensor designed to detect combustible gases such as LPG, smoke, butane, hydrogen, methane, and propane. It is widely used in gas leakage detection systems for homes, industries, and safety applications. The module outputs both analog and digital signals for easy integration with microcontrollers like Arduino.
⚙️ Key Features
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Sensitive to LPG, smoke, methane, hydrogen, butane, and propane
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Provides both analog and digital output signals
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High sensitivity and fast response time
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Suitable for indoor and outdoor gas leakage detection
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Simple interface with microcontrollers (Arduino, Raspberry Pi, etc.)
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Long service life and stable performance
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Pre-calibrated and easy to use
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Operating voltage: 5V
📋 Specifications
| Parameter | Description |
|---|---|
| Sensor Model | MQ-2 |
| Detectable Gases | LPG, Smoke, Butane, Hydrogen, Methane, Propane |
| Operating Voltage | 5V DC |
| Output Signal | Analog and Digital |
| Heating Time | 20 seconds (preheat before use) |
| Sensitivity Range | 200 to 10000 ppm (approximate) |
| Response Time | < 10 seconds |
| Warm-up Time | Approx. 20 seconds |
| Dimensions | Approx. 32mm x 20mm |
Pin Description
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VCC: +5V power supply
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GND: Ground
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DO: Digital output (High/Low depending on gas concentration threshold)
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AO: Analog output (varies with gas concentration)
Applications
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Gas leak detection systems
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Home safety and security alarms
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Industrial gas monitoring
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Fire detection systems
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Air quality monitoring
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Portable gas detectors
Package Includes
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1 x MQ-2 Gas Sensor Module
