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. Specifications: Power Supply Voltage:5V Detecting Concentration: 20ppm-2000ppm Carbon Monoxide 500ppm-10000ppm Methane (CH4) 500ppm-10000ppm LPG Analog and Digital Output Digital Out is High or Low based on a adjustable preset threshold.
|Operating Voltage (VDC)||5|
|Current Consumption (mA)||150|
|Do output||TTL digital 0 and 1 (0.1 and 5V)|
|Ao output||0.1-0.3V (relatively clean)|
|Shipment Dimensions||5 × 5 × 4 cm|