The MQ-2 Gas Sensor Module is a robust and highly sensitive device designed to detect the presence of combustible gases and smoke in the air. It is particularly sensitive to Liquefied Petroleum Gas (LPG), propane, and hydrogen, and also provides good detection of methane and other combustible steams. The sensor's core is a SnO2 (tin dioxide) semiconductor material which has lower conductivity in clean air. When the target combustible gas exists, the sensor's conductivity increases along with the gas concentration. This change is converted into a corresponding analog output signal, and a digital output is also available via an onboard comparator, which can be adjusted with a potentiometer.

Key Features:

• Wide Detection Range: Senses LPG, propane, methane, hydrogen, alcohol, smoke, and other combustible gases.

• High Sensitivity: Features a high-sensitivity core that provides reliable and fast detection.

• Dual Output: Offers both analog and digital output signals for flexible integration with microcontrollers like Arduino, ESP32, and Raspberry Pi.

• Adjustable Sensitivity: An onboard potentiometer allows you to easily adjust the digital output trigger threshold.

• Long Lifespan and Stability: Engineered for stable and long-term performance in various environments.

Technical Specifications:

• Operating Voltage: 5V DC

• Detection Range: 300 to 10,000 ppm (parts per million)

• Characteristic Gases: Propane, Butane, LPG

• Outputs: Analog (A0) and Digital (D0)

• Dimensions: 32mm x 20mm x 22mm

• Preheat Time: Over 20 seconds

Common Applications:

• Gas Leakage Detection: Ideal for creating domestic gas leak alarms and industrial combustible gas detectors.

• Safety and Security Systems: Integrate into fire alarms and other safety monitoring devices.

• Robotics: Equip robots with the ability to "smell" and detect gas leaks in their environment.

• Air Quality Monitoring: Use as part of a larger system to monitor indoor and outdoor air quality.

• Educational Projects: An excellent component for students and hobbyists to learn about gas sensing and environmental monitoring.

Extra Description

Package Includes:

• 1 x MQ-2 Gas Sensor Module

Why Choose This MQ-2 Gas Sensor? At Hitech Electronics & Hardware, we prioritize the safety and success of your projects. Our MQ-2 Gas Sensor is a top-quality, reliable component that provides the accuracy you need for safety-critical applications. Trust in our components to deliver the performance your projects demand.

Pro Tip: For optimal performance, allow the sensor to preheat for at least 20-30 seconds before taking readings. This ensures the sensing element reaches its ideal operating temperature, leading to more stable and accurate measurements.