MR-S-1006
Power Supply: 5 Volts
Interface Type: Analog & Digital
High Sensitivity to Smoke & combustible gasses like Hydrogen, LPG & Propane.
Low Cost.
Stable & Long Life.
On board Power indication.

It is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. It requires no external components just plug in Vcc & ground pins and you are ready to go.