The MSF-Lab, established in 2004, is part of the Department of Experimental Planetary Physics and is used for different astrobiological and physical experiments to simulate the key environmental conditions like pressure, temperature, radiation, gas composition, and primarily also the diurnally varying atmospheric humidity in a range from earth conditions to similar to those at the near-surface atmosphere of Martian mid- and low latitudes. A further part of the laboratory are tests with gas, humidity and temperature sensors and the development of trace humidity sensors for space and industrial applications. In the following table, the MSF measurement categories and controllable parameters are summarized.