Features:

1. Sensitivity to Ammonia, Sulphide and Benzene steam
2. Sensitive for benzene, alcohol, smoke
3. Fast response and recovery
4. Adjustable sensitivity
5. Signal output indicator
6. Output voltage boosts along with the concentration of the measured gases increases

Features :
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

Features :
1. High sensitivity to LPG, natural gas, town gas.
2. Small sensitivity to alcohol, smoke.
3. Stable and long life.
4. Simple drive circuit.
5. Fast response.

Feature:

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

Features:

1. Good sensitivity to CO/Combustible Gas
2. High sensitivity to Methane, Propane, and CO
3. Long life and low cost
4. Simple drive circuit
5. Input voltage: DC 5±0.2V
6. Current Consumption: 150mA