MQ-9 Gas Sensor Module 12 MHz It has a special feature

It has a special feature that upper Potentiometer between middle and right screw terminal drive some amount of resistance and lower rheostat's between middle and left screw terminal drive remaining resistance

5M Ohm Package 0603 Mounting Type Surface mount No

The average forward current is 2A

Maximum logic voltage: 5

pulse noise suppression

MQ-9 Gas Sensor Module 12 MHz It has a special featureThis MQ 9 gas sensor is very sensitive to carbon monoxide, methane and LPG. The sensitive material of the MQ 9 gas sensor is SnO2, which has a lower conductivity in clean air. It detects high and low temperature alternations and detects CO at low temperature (heated to 1. 5V). The conductivity of the sensor increases as the gas concentration increases. As the temperature rises (heated to 5. 0 V), it detects methane, propane, combustible gas, etc. and