public override string ToString()
 {
     return(string.Join(",", ApiKey, Temp.ToString(CultureInfo.InvariantCulture),
                        Hum.ToString(CultureInfo.InvariantCulture), Preassure.ToString(CultureInfo.InvariantCulture),
                        CO2.ToString(CultureInfo.InvariantCulture), LPG.ToString(CultureInfo.InvariantCulture),
                        CO.ToString(CultureInfo.InvariantCulture), CH4.ToString(CultureInfo.InvariantCulture),
                        Dust.ToString(CultureInfo.InvariantCulture), Longitude.ToString(CultureInfo.InvariantCulture),
                        Latitude.ToString(CultureInfo.InvariantCulture)));
 }