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Problems with HR monitor

Former Member over 6 years ago

Went to use my forerunner 235 yesterday and it kept dropping to the lowest HR during exercise, anybody had any experience with this or know how to fix?

0 tmk2 over 6 years ago

Are you using the built-in optical sensor? Have you searched the forum for optical HR inaccuracy?

0 Former Member over 6 years ago

I am using the sensor and I couldnt find anything related to the HR inaccuracy

0 Bullet over 6 years ago

Look at this
https://forums.garmin.com/forum/on-the-trail/wrist-worn/fenix-5-5s/1394872-low-hr-activity