A fuel cell system includes a fuel cell stack, a fuel inlet conduit, a water inlet conduit, and a hydrometer, such as an alcoholometer. A surface mountable antenna clip is mounted on the PCB for retaining the antenna. The first and second UMA devices are connected to the same local area network. First, a scoring function is constructed from the one or more example sets. The invention further relates to methods for preparing such compounds, pharmaceutical compositions comprising said compounds as well as the use as a medicine of said compounds.