MQ9 Gas Sensor module

MQ-9 gas sensor has high sensitivity to Carbon Monoxide, Methane and LPG.The MQ-9 gas sensors are used in gas detecting equipment for carbon monoxide, methane and LPG in home, industry or car. The module gives out the concentration of the gases as a analog voltage equivalent to the concentration of the gases. The module also has a on-board comparator for comparing against a adjustable preset value and giving out a digital high or low. 

Applications

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

Specification

• Power Supply Voltage:5V
• Detecting Concentration:Analog and Digital Output
  • 20ppm-2000ppm Carbon Monoxide
  • 500ppm-10000ppm Methane (CH4)
  • 500ppm-10000ppm LPG
• Digital Out is High or Low based on a adjustable preset threshold.

MQ-9 Datasheet