SUUNTO M1 - Manual (Page 29)

14.2 Replacing HR belt battery
Replace the battery as illustrated here:
M1 heart rate belt
M2 heart rate belt
NOTE: Suunto recommends that the battery cover and the O ring are changed
simultaneously with the battery to ensure that the HR belt remains clean and water
resistant. Replacement covers are available with replacement batteries from your
authorized Suunto dealer or web shop.
29
en