Acumen EON-202TRT PYR  -  Fitness Watches: Reveiws

Acumen EON-202TRT PYR – Fitness Watches: Reviews

Acumen EON-202TRT PYR  -  Fitness Watches: Reveiws

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Is it safe to skip that water break? The ACUMEN EON-202TRT PYR ($269), a heart-rate monitor with an internal dehydration calculator, will let you know. Before you head out, program the outside temperature and humidity into the wrist unit via a key-chain gauge, then follow its advice on how much water to quaff, and when to do so.

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