MQ2 MQ2 Smoke Gas LPG Butane Hydrogen Air Sensor Detector Module DC 5V 2025 version engineered for reliable, precise, and stable performance in gas detection and monitoring applications. Key benefits Detects multiple common combustible gases and smoke: designed to sense LPG, butane, hydrogen, smoke, and other flammable gases for quick detection of concentration changes. Reliable and precise performance: updated 2025 module provides consistent responses and stable baseline behavior to support repeatable measurements in prototypes and systems. Easy integration with 5V systems: ready to run on DC 5V power supplies and compatible with standard 5V microcontroller boards and development systems. Compact and practical form factor: PCBmounted sensor module fits spaceconstrained projects and can be added to enclosures or test rigs without major modifications. Suitable for development and production: useful both for hobby and educational projects and for basic monitoring tasks in equipment and small installations. Features and attributes Function: gas and smoke detection for combustible gases including LPG, butane, and hydrogen, and for relative air contamination changes. Power: operates from DC 5V as specified for straightforward connection to common electronics. Performance: designed for stable output and repeatable detection behavior; intended for monitoring and indication rather than certified safety shutdown. Construction: PCBmounted sensor module with standard connector pins for power and signal. Compact footprint for easy mounting. Compatibility: works with a wide range of 5V microcontroller boards, data acquisition modules, and indicator circuits. Typical applications Home and kitchen prototypes: integrate into a DIY gas alarm or monitoring circuit to detect the presence of LPG or butane during development and testing. Workshop and laboratory use: monitor hydrogen or smoke levels during experiments and bench tests where quick sensing of combustible gases is required. Educational and hobby electronics: ideal for learning sensor interfacing, building gas detection demos, and testing alarm thresholds with microcontroller projects. What this module delivers A straightforward, 5Vcompatible gas sensing module labeled MQ2 MQ2 for quick integration. Stable, repeatable response behavior suitable for monitoring, alerting, and experimental use. Compact form factor for easy placement in prototype boards, enclosures, and teaching setups. Note: This sensor module provides relative gas concentration information for monitoring and detection purposes. For critical safety installations or applications requiring certification, use certified gas detection equipment and follow applicable standards.