Originally Posted by
Metric Man
looked down and it was reading 171, ( I was pumping pretty hard ) and the next thing I know it said 218! Then it fell back to the low 170's almost immediately so I'm inclined to believe it was an anomaly. Should I expect a few unnatural spikes with these?
This normally happens when its too dry between your skin and the strap, make sure you dampen the strap really well before putting it on