Hydrocarbon Gas Detector/ Infrared Sensor requires a DC power supply and embedded software to drive the sensor to extract the signal and convert them into a linearized analogue output proportional to gas concentration. Hydrocarbon Gas Detector is configured with data collection mode and RS 232 data output facility for remote monitoring and data logging. The Infrared Sensor is mainly used for detecting methane, liquefied petroleum gas, compressed natural gas, carbon dioxide, ethanol, methyl bromide, nitrous oxide and other hydrocarbon gases. Hydrocarbon Gas Detector/ Infrared Sensor is equipped with high resolution 12 bit A-D converter to facilitate ease of operation.