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MQ5 LPG Natural Gas Sensor Module
The MQ-5 Gas Sensor Module is a semiconductor gas sensor board designed to detect LPG (liquefied petroleum gas), natural gas (methane), and other combustible gases in the air. It contains an MQ-5 sensing element made of tin dioxide (SnO?), whose resistance changes when exposed to target gases. The module includes a heater to bring the sensing element up to its optimal operating temperature, and it provides both analog output (for gas concentration) and often a digital output (via a built-in comparator) for easy microcontroller interfacing. The MQ-5 is commonly used in safety and monitoring applications where basic combustible gas detection is needed.
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Features
- Detects LPG, natural gas (methane), and other combustible gases
- High sensitivity to target gases
- Analog output proportional to gas concentration
- Often includes a digital output with adjustable threshold (potentiometer)
- Integrated heater for stable operation
- Low cost and long service life
- Easy to interface with microcontrollers (ADC required)
- Compact module suitable for prototyping and embedded systems
Applications
- LPG/natural gas leak detection in kitchens, homes, and gas storage areas
- Gas leak alarm systems and safety monitors
- Portable gas detection devices
- Environmental and air quality monitoring
- Industrial combustible gas monitoring systems
- Smart home automation with gas warning alerts
- Educational and hobbyist electronics projects
- Embedded IoT and sensor systems
*Product image for illustration purposes only, actual product may vary.
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