Fuel Gas Monitor that we proposed is a compact size, and portable battery operated gas analyzer. This can measure percentage of Carbonmonoxide, & Oxygen, and the readings of that gases accurately display on 3 1/2 digit 12mm high LCD screen. A single copper tube type gas probe is combined with a filler. It comes with synthetic rubber hose, which connect this device to the instrument. It has rechargeable battery, which provides power backup to the instrument when required. The Fuel Gas Monitor is simple to operate, energy efficient, cost-effective, and requires less maintenance.