MQ-2 Flammable Gas and Smoke Sensor

The MQ2 Flammable Gas and Smoke Sensor is a versatile sensor capable of detecting a variety of gases, making it useful for various applications. Here's a summary of its features and applications:

  Features:  

• Gas Detection: Can detect LPG, i-butane, methane, alcohol, hydrogen, smoke, and more.
• Adjustable Sensitivity: Can be adjusted via the potentiometer.
• Detection Range: Can detect gas concentrations from 200 to 10000ppm.
• Sensor Material: Uses SnO2 as the sensitive material.
• Fast Response Time: Provides quick measurements.
• Low Cost: Affordable and suitable for various applications.

  Connections:  

• Heating Pins (H): Apply 5V to keep the sensor hot.
• Analog Output (A/B): Apply 5V to either pin to get analog voltage on the other pin.
• Sensitivity Adjustment: Use a resistive load between the output pins and ground to set sensitivity.

  Applications:  

• Gas Leak Detection System: Detects gas leaks in homes and industries.
• Fire/Safety Detection System: Used in fire detection systems.
• Gas Leak Alarm: Sounds an alarm when gas is detected.
• Industrial Combustible Gas Detector: Used in industrial settings for gas detection.
• Home Security Systems: Can be used to make a wireless gas leak detector.

  Package Includes:  

• 1 x MQ-2 Flammable Gas and Smoke Sensor

The MQ2 sensor's versatility and low cost make it a popular choice for gas detection applications. Its ability to detect a range of gases and fast response time make it suitable for various scenarios where gas detection is critical.