MOBILE MEASURING DEVICE, SYSTEM AND PROCESS FOR A SAFETY-RELEVANT APPLICATION

A safety application mobile measuring device () includes a control unit () and a detection unit (). The control unit controls changes between a switched-on state and a switched-off state depending on a received detection signal (). The detection unit monitors, in the switched-off state, whether a switch-on condition () is present and outputs the detection signal, which indicates a change into the switched-on state which is to be carried out. The detection unit monitors the switched-on state as to whether at least two switch-off conditions () are present and outputs the detection signal, which indicates a change into the switched-off state, which is to be carried out, in the presence of at least two switch-off conditions. At least two detection devices () each carry out a detection corresponding to the at least one switch-on condition and to the at least two switch-off conditions.