More:Pololu
More:Gas Sensor
This carrier board is designed to work with any of the MQ-series gas sensors, simplifying the interface from 6 to 3 pins (ground, power and analog voltage output) that are broken out with a 0.1" spacing, making the board compatible with 0.1" headers and standard breadboards and perfboards. This board has two mounting holes and provides convenient pads for mounting the gas sensor’s required sensitivity-setting resistor.