Miniaturized gas sensors for oxygen, nitrogen and trace moisture have been developed jointly . The research projects of the Institute of Aviation and Astronautics (ILR) focus on technological developments for Space and on the field of self-sufficient mobile systems. Miniaturised sensor and power supply systems for space missions as well as for terrestrial applications of automotive technology, combustion technology, medical and environmental technology have been successfully developed. The third-party funded research is based on public funding and industry-backed research and development contracts. Together with the ILR we work on the development of miniaturized gas sensors for oxygen, nitrogen and trace moisture.