Actually, I am using one of the Polar straps ,but with the Garmin sensor clipped on.
Battery is newly replaced - but the monitor is really inconsistent. Some days it works fine; occasionally, it just doesn't pick up; quite often, it works fine for a bit of the run (today, it was OK for about 23 mins, then cut out, then was reading about 40bpm for the rest of the run.
Any suggestions where I start to troubleshoot?
Has anyone had similar issues?
What is most likely at fault - the strap or the sensor?
Should I just not bother with heart rate anyway - after all, I don't pay that much attention to it anyway?
Am I actually one of the undead?
Thanks!