@Override
  public String multiMeterString(Direction side) {
    if (side == front.left())
      return Utils.plotVolt("UP+:", primaryLoad.getU())
          + Utils.plotAmpere("IP+:", primaryLoad.getCurrent());
    if (side == front.right())
      return Utils.plotVolt("US+:", secondaryLoad.getU())
          + Utils.plotAmpere("IS+:", secondaryLoad.getCurrent());

    return Utils.plotVolt("UP+:", primaryLoad.getU())
        + Utils.plotAmpere("IP+:", primaryLoad.getCurrent())
        + Utils.plotVolt("  US+:", secondaryLoad.getU())
        + Utils.plotAmpere("IS+:", secondaryLoad.getCurrent());
  }