Failed

After I had my pacemaker fitted I purchased a fitness monitor, choosing one that had a heart rate monitor on it. Not that I distrusted the pacemaker, more a matter of being inquisitive about my heart rate and how often the pacemaker would actually kick in. I learned that actually it was most active when I was asleep! That was when my natural heart rate dropped below the point at which the pacemaker kicked in.
The strap has now broken, and after some research I found that it was not replaceable, so it is destined for recycling.