Euro plug (2-pole) or Schuko plug (3-pole)? If the monitor is equipped with a Schuko plug, it is probably imported from Germany. Normally, an adapter for Swiss sockets should be included. If you ask nicely, you can also get a free cold appliance cable with a Swiss connection from digitec. If it's a Euro plug, then the parts that carry 230 V are double-insulated. That should be normal.