Description:
MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, the conductivity sensor with increasing concentration of combustible gases in the air increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-2 gas sensors high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapours are also very good. This sensor can detect a variety of flammable gases and is a low-cost sensor for a variety of applications.
Specifications:
- Operating Voltage: 5V DC
- Analog Output Voltage: 0 to 5V
- Digital Output Voltage: 0V or 5V (TTL Logic)
- Preheat Duration: 20 sec
Features:
- Good sensitivity to Combustible gas in a wide range
- High sensitivity to LPG, Propane, and Hydrogen
- MQ-2 Gas Sensor has long life and low cost
- MQ-2 Gas Sensor has simple drive circuit
- Can be used as a Digital or analogue sensor
- The Sensitivity of Digital pin can be varied using the potentiometer
- Can be used to measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane.
Pin Description:
- VCC: positive power supply (5V)
- GND: power supply is negative
- DO: TTL switching signal output
- AO: the analog signal output
Application:
- The domestic gas leakage detector
- Industrial Combustible gas detector
- Portable gas detector
Package Included:
1 x MQ-2 Gas Sensor MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module