GAS SENSOR MQ-2
The MQ-2 gas sensor is a versatile sensor used to detect various gases, including LPG, propane, methane, alcohol, and smoke. It's commonly used in applications like gas leakage detection, air quality monitoring, and safety systems.
Typical Specifications:
Power Supply Voltage: 5V (DC)
Working Current: Typically around 150 mA (during heating)
Sensitivity Range:
LPG: 300 to 10,000 ppm
Methane: 300 to 10,000 ppm
Alcohol: 100 to 10,000 ppm
Response Time: Usually less than 10 seconds
Recovery Time: Typically around 30 seconds
Operating Temperature: -20°C to +50°C
Operating Humidity: 5% to 95% (non-condensing)
Dimensions: Approximately 32 mm x 20 mm x 12 mm
Pin Configuration:
VCC: Power supply (5V).
GND: Ground.
A0: Analog output (voltage proportional to gas concentration).
D0: Digital output (HIGH when gas is detected above a certain threshold).
Key Features of MQ-2:
Gas Detection: Sensitive to multiple gases such as LPG, propane, methane, alcohol, and smoke.
Output Signal: Provides both analog and digital outputs.
Sensitivity Range: Can detect gases in a range of concentrations.
Fast Response Time: Quick detection of gas presence.
Easy to Interface: Can be easily connected to microcontrollers like Arduino and Raspberry Pi.
Applications:
Gas leakage detection in households and industries.
Air quality monitoring in smart home systems.
Smoke detection systems.
Industrial safety systems.
