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Question About Timex Heart Rate Monitor M821
Target Zones...

How do I switch between the zones? Mine is currently set for 162-180 - default. Can't find any instructions in manual - can anyone help please? Thanks

Asked by Jacqui Good on 12/31/2008 2  Answers

ManualsOnline posted an answer 15 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

BigSexy posted an answer 15 years, 4 months ago

0 press MODE until you reach SETUP, press and hold STOP/RST-SET button then press the START/LAP to change to different presets or go to Manual and set you own
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