The MQ-5 gas sensor is a versatile device designed to detect the presence of various combustible gases in the air, with a particular focus on natural gas (methane) and liquefied petroleum gas (LPG). It operates on the principle of catalytic combustion, where the target gas interacts with a heated sensing element, causing a change in its resistance. This change is then measured and converted into an electrical signal, which can be interpreted by a microcontroller or other electronic devices.

The MQ-5 sensor is commonly used in gas leak detection systems, industrial safety applications, and home automation projects to monitor the concentration of natural gas and LPG, providing an early warning of potential hazards such as gas leaks or buildup..

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Key features of the MQ-5 gas sensor include its high sensitivity to combustible gases, fast response time, and low power consumption. It is compact in size, making it suitable for integration into various electronic systems. However, it’s important to note that while the MQ-5 sensor is effective for detecting certain gases, it may not be suitable for detecting other types of gases or volatile organic compounds (VOCs), requiring specific sensors tailored to those substances. Regular calibration and maintenance are also essential to ensure accurate and reliable performance over time.

Specification

• Wide Application: Ideal for gas leakage detection, home safety systems, industrial gas monitoring, and other gas detection projects.
• Easy Integration: Provides an analog output signal easily interfaced with microcontrollers and ADCs.
• Quick Response Time: Rapid detection of gas concentrations for timely alerts and interventions.
• Reliable Performance: Stable and consistent output over extended periods, ensuring long-term reliability.
• High Sensitivity: Specially designed to detect natural gas (CH4) and liquefied petroleum gas (LPG) with high precision.