The Dräger Gas Detection App provides a general overview of gas and vapor measurement technology. The basic principle of the Dräger-Tube and Chip Measurement Systems (CMS) are described and a complete listing of the Dräger -Tubes and chips are provided with all relevant measurement parameters. In addition there is an introduction to portable monitors, including electrochemical, catalytic, and infrared sensor technology. There is a complete list of Dräger sensors and monitors for industrial applications. The App is a convenient source for all current information on Dräger portable gas detection products.