SF6 is an extremely potent greenhouse gas
          with a global warming potential of 23,900 times that of CO2.
          But it is also an excellent electrical insulator, which is the
          reason why it is used in gas insulated switchgear units. 
        SF6 gas density monitors are installed in such units to avoid gas
          leakages in the system. Therefore the readability of the device is
          essential to detect potential issues as early as possible.
          With that in mind the scale and the connector were redesigned.