Way to detect Measurement Unit, metric or US in system preferences

(OS X / Desktop)

In system preferences > language & region > advanced…

Theres is a Measurement Units preference that can be set to Metric or US.

Does anybody know a way to detect the setting from the user?

dim n as NSLocaleMBS n=NSLocaleMBS.currentLocale MsgBox str(n.UsesMetricSystem)

using MBS Plugin.

thanks, Christian