Polar cs500 alitimeter reading query?

renrag1967
renrag1967 Posts: 17
edited June 2011 in Workshop
I have bought this and tried it out today, great device but the Altimeter reading is confusing me... (im not the sharpest as computers!)

its shows two figures, (1) a number in degrees eg 8degrees and (2) a %age figure eg 14%. The first figure always appears lower than the 2nd (%) figure.

Any ideas how i should interpret this? My previous Blackburn device just had a % figure whiich i correlated to general comments re TdF climbs being say 6, 7 or 9% or in the Giro being 20%! Wtf use is the degrees figure useful for?
Don't call me Shirley..

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