@dhameljolette said in Heart rate monitor in the cold:
Hi Suunto community,
I get very inaccurate HR using the watch sensor (not the strap) when I am ski touring/walking up a mountain, in winter tenperature that are pretty mild around 0 celsius.
My watch measures my heart rate between 80 and 120 but when I manually measure my HR at my carotid, I get results between 150 and 160bpm.
Is that a common problem to have or is my Peak Pro 9 defective?
I downgraded the software and got the same issue.
Thank you!
I don’t own a 9PP myself, but I am consider to buy the 9PP OR the Race S. After doing quite some research, it seems that the OHR on the 9PP isn’t perfect. The Race S seems to have a better OHR. However, leaving the Race S aside, from what I have seen in reviews on the 9PP this is what I have noted:
When the reviewers show their graphs, running with the 9PP alongside other heart rate monitors (straps, other watches, …) on the same run, it seems usually that the 9PP have problems at the beginning of the run, while later on doing pretty well. My initial thought on this is that it is due to the fact that the sensor on the 9PP isn’t perfect - and at the beginning of the runs, people might be colder etc, it has problem getting an accurate read. However, after running for a moment, and people get warm with all what that means (slight swelling, clock sits tighter etc etc) the 9PP does a decent job.
So my interpretation is that your 9PP is probably not broken. And I would prefer the 9PP over the Race S, but this is one of the downsides with the 9PP.
Try placing the watch tighter and perhaps a bit higher up on your arm (I know it doesn’t sound to comfortable) but I think that is the best you can do.