https://learn.microsoft.com/cs-cz/dotnet/api/system.device.location.geocoordinate.horizontalaccuracy?view=netframework-4.8.1
GeoCoordinate.HorizontalAccuracy Property (System.Device.Location) | Microsoft Learn
Gets or sets the accuracy of the latitude and longitude that is given by the GeoCoordinate, in meters.
property systemdevicelocationmicrosoftlearn