Sparkfun Gas Sensor Breakout Board BOB-08891

Simple breakout board for the MQ - 3, MQ - 4, MQ - 6 and MQ - 7 gas sensors.  All you need is VCC at 5V, GND, and a resistor to an ADC, that is it.

 

Note: This is the PCB only. Sensors listed below.

 

Dimensions: 16.8mm diameter