MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module

MQ-9 gas sensor using gas-sensitive materials with lower conductivity in clean air tin oxide (SnO2). MQ-9 Module can be used to sense Carbon Monoxide and Methane Gas. High and low-temperature cryogenic loop detection mode to detect carbon monoxide sensor conductivity increases with the increase in the concentration of carbon monoxide gas in the air, high-temperature detection of combustible gases methane, propane and cryogenic cleaning adsorption of stray gas.

MQ-9 high sensitivity to carbon monoxide, methane, liquefied gas sensor, this sensor can detect a variety of carbon monoxide and the flammable gas is suitable for a variety of applications.

Connections:

• VCC ➠ Positive pole (5V)
• GND ➠ Negative pole
• DO ➠ TTL switch signal output
• AO ➠ Analog signal output

• Have better sensitivity to Carbon Monoxide, Methane, and LPG Gas.
• Long life and stability, quick response, and resume.
• Simple drive circuit
• Suitable for home or factory gas leakage monitoring devices.
• High-quality dual-panel design, with power indicator and TTL signal output instructions.
• DO switching signal (TTL) output and AO analog signal output.
• TTL output valid signal is low. 
• Analog output voltage: the higher concentration, the higher voltage.
• Four screw holes, easy positioning.

• Portable gas detector
• Industrial gas detector
• Domestic gas leakage detector

Package Includes:

1 x MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor Module.