Hi,

Unfortunately I have purchased a Humminbird fishfinder (Matrix 37) in the
US without knowing that on the US models the units were not configureable (I
want meters instead of feet, Celcius instead of Fahrenheit , km/h instead of
mph etc).

However all Humminird models also exists in international versions as well
(which are fully configureable). Does anybody here know what is the
difference? Firmware, or simply a jumper inside...?

Thanks for any tip on this issue

regards