Gas Sensor( MQ-2)

Introduction:

Gas Sensor module with gas sensor is useful for gas leakage detection in home and industry. It can detect H2, LPG, CH4, CO, Alcohol, Smoke, Propane and other flammable gases.
Sensor detects the concentrations of combustible gas in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of flammable gas from 300 to 10,000 ppm, operates at temperatures between -20°C to 50°C and consumes less than 150 mA at 5 V (only sensor current consumption).

Features:

Outputs both analog and digital values
Onboard LED indicates if the module is connected properly
Another onboard LED indicates when threshold values are touched (turns on)
Great for DIY projects and Arduino beginners
M3 Mounting holes to mount the module on your desk or project

Specification:

Model	MQ2 Gas Sensor
Number of Pins	4 (AO, DO, VCC, GND)
Output Type	Analog and/or Digital Output
Operating Voltage	4.5V to 6V
Lead Pitch	0.1th inch (2.54 mm) Breadboard compatible
Dimension	1.5" x 0.8" x 0.8" inch (36 mm x 20 mm x 20 mm)
Operating Temperature	0C to 60C (± 10%)
Detection	Smoke, Gas, LPG, Butane, Hydrogen
LED Indicator	SIG, PWR