- Written by Mike Gruwell
With the unit on, press the button twice and select the Menu option and then Config option. Items under this menu item include: Alt Unit (Meters or Feet), Sys Unit (Metric or U.S.), Time Cfg (time and date settings), Log Mode (Normal or Trace).
Confirm after changing the altitude, system or log mode. The date and time updates are completed when you finish with entering the year.