Originally Posted by Hegemony
I anticipate the batteries are OK as the Polar is only 4 months old....but I guess it may have sat on the shelf for a while??
Even with fresh batteries they can get a little confused once in a while. Mine read 228 the other day and when I put fingers to my neck before deciding if I should just fall over there was no way I was ticking over above the 160's. A few seconds later the HRM started reading sensibly again.