In human‟s daily life, environment gives the most significant impact to their health issues. Therefore, environment and industry air quality issues are critically discussed to increase the awareness and responsibility regarding the threat on the environment towards public and workers health. Most of the dangerous gas such as carbon monoxide (CO), refrigerant gas and liquefied petroleum gas (LPG) are colorless and odorless compound that are produced by incomplete combustion. Therefore, gas detector device is needed in order to inform the safety situation continuously.