DX4040 is a Portable FT-IR multi-gas analyzer that can simultaneously measure up to 25 organic ang inorganic gases from high to low concentration. The range of analysed gases will depend on the software library of the handheld computer. A built-i pump comes with the analyser and it requires minimal preparation for particle filtratiuon. This device has a patented GICCOR interferometer which is shock and vibration resistant, operates in any orientation and scans the infrared spectrum 10 times per second. The analyzer and the handheld computer uses bluetooth for communication.91