Gas sensor systems and methods of using same

A gas sensor system comprising:

• at least one gas sensor configured to receive at least one gas to be sampled;
• a processor configured to implement computer executable instructions;
• a first output interface in communication with the processor;
• a computer memory in communication with the processor and storing data representing a reference database of gases and computer executable instructions, that when implemented by the processor cause the processor to:
• measure a density of the at least one gas;
• at least one of a) heat and b) cool the at least one gas with a first thermal input;
• determine a first rate at which the at least one gas changes temperature when at least
• one of a) heat and b) cool the at least one gas;
• compare at least one of the density and the first rate to a reference database of gases;
• determine at least one of a) a category b) a lower explosive limit and c) a concentration of the at least one gas;
• generate at least one output signal reflective of at least one of a) a category b) a lower explosive limit and c) a concentration of the at least one gas;
• and
• display at least one of a) a category b) a lower explosive limit and c) a concentration of the at least one gas on at least the first output interface.