MQ2 Flammable Gas and Smoke Sensor

Features:

1. Power supply voltage: DC5 ± 2V
2. Sensitivity: 0.5V / (0.1mg / m3)
3. The minimum detection level of particles: 0.8 m
4. Clean air voltage: 0.9V typ.
5. Low consumption current (Icc: MAX. 20 mA)
6. The presence of dust can be detected by the photometry of only one pulse
7. Enable to distinguish smoke from house dust

Specifications : 1. Good sensitivity to Combustible gas in a wide range 2. High sensitivity to LPG, Propane, and Hydrogen 3. Long life and low cost 4. Simple drive circuit 5. Can be used as a Digital or analog sensor 6. The Sensitivity of Digital pin can be varied using the potentiometer 7. Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methan

Secifications:

1. Sensitive to alcohol, ethanol
2. Fast response and recovery
3. Adjustable sensitivity
4. Signal output indicator
5. Analog and level signal output.
6. The carbon monoxide detection with better sensitivity.
7. Has a long service life and reliable stability.
8. Output voltage boosts along with the concentration of the measured gases increases

Secifications:

1. Operating Voltage: 5V DC
2. Indication of the signal output
3. Dual signal output (analog output, and TTL level output)
4. 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage
5. High sensitivity to hydrogen
6. Can be resistant to ethanol steam, LPG (petroleum), smoke interference
7. Has a long life and reliable stability
8. Fast response and recovery characteristics