The default unit system used by SCRUFF is determined by the region setting of your device. To override this setting:

1. Launch SCRUFF
2. Open the Settings menu (MENU > Settings)
3. Select Profile Editor > App Preferences > Units
4. Choose between Metric (metric units, meter/kg) or USA (imperial units, ft/lbs) and tap OK to finish.
5. Back out of the editor to save your changes
6. You may need to exit and re-start SCRUFF for the change to take effect