This thesis work aims to explore the characteristics of a gas sensor with respect to input voltage and duty cycle. To complete this, a pilot study has been done to design a working prototype for production where the appropriate components have been selected. A printed circuit board has been produced and the components have been mounted. The result shows that the common uncharacteristic behavior of the sensor is a negative value or the possibility of no value instead of the typical value of 1.00. The maximum values to avoid these uncharacteristic sensor behaviors are 1% duty cycle of a 1 second period and an input voltage of 2.5 volt. The result is greatly affected by humidity.