Smoke sensor module

The MQ-2 semiconductor gas sensor is a high-sensitivity detection module designed to sense various combustible gases and smoke in the surrounding air. Built using a reliable black bakelite package, this sensor provides excellent stability and long-term durability for indoor gas leak detection and fire safety applications.

This sensor is capable of detecting gases such as LPG, methane, hydrogen, alcohol vapor, propane, and other combustible gases within the range of 300 to 10,000 ppm. It offers fast response time and low-cost operation, making it ideal for gas leakage detection systems, smart home appliances, industrial safety systems, and fire alarms.

Main Features:

• Detection Range: 300-10000ppm (Combustible gases & smoke)
• Sensitive to: LPG, butane, methane, alcohol, hydrogen, smoke, and propane
• Output: Analog (variable voltage) and digital output
• Operating Voltage: 5V DC
• Long lifespan with reliable stability
• Compact size with standard black bakelite housing
• Fast response and recovery time
• Low cost and easy integration into various gas detection applications

Typical Applications:

• Gas leakage alarms
• Fire detection systems
• Smart home safety devices
• Industrial gas monitoring
• Air quality monitoring systems

✅ Frequently Asked Questions (FAQ):

Q1: What gases can the MQ-2 sensor detect?
A1: The MQ-2 sensor is designed to detect combustible gases such as LPG, methane, propane, hydrogen, alcohol vapors, and smoke.

Q2: Is this sensor suitable for detecting natural gas leaks?
A2: Yes, the MQ-2 sensor can detect methane, which is the primary component of natural gas.

Q3: Can I use the MQ-2 with an Arduino or Raspberry Pi?
A3: Absolutely. The sensor outputs both analog and digital signals, making it compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontroller platforms.

Q4: What is the operating voltage of the MQ-2 sensor?
A4: The MQ-2 operates at a 5V DC supply voltage.

Q5: Does the MQ-2 require calibration?
A5: Yes, for accurate gas concentration readings, calibration in the target gas environment is recommended.