public override string ToString()
        {
            string retStr =
                "Ventus:" + Environment.NewLine +
                "Date,time: " + dateTimeUTC.ToString("dd.MM.yyyy HH:mm:ss") + " (UTC)" + Environment.NewLine +
                "Virtual temperature [°C]: " + VirtualTemperatureCels.ToString("F2") + Environment.NewLine +
                "Wind speed [m/s]: " + windSpeed.ToString("F2") + Environment.NewLine +
                "Wind speed [m/s] Vect.:" + windVectSpeed.ToString("F2") + Environment.NewLine +
                "Wind direction [°]: " + windDirection.ToString("F2") + Environment.NewLine +
                "Wind direction [°] Vect.: " + windVectDirection.ToString("F2") + Environment.NewLine +
                "Abs. air pressure [hPa]: " + AirPressureAbs.ToString("F2") + Environment.NewLine +
                "Wind value quality [%]: " + windValueQuality.ToString("F2");

            return(retStr);
        }