There is a feature that is sometimes called “the response rate sensor,” though it may be known by different names. The upper number it had been set at was 130. We changed that to 150. I’m sorry I can’t explain precisely what that means, only that how this feature is set has something to do with breathing response time. Some call it the pacing sensor. Mine is now set at 60 (at low end) and 150.

There are also four activity settings. My PM had been programmed at the No. 2 setting (active). It was changed to No. 4 (endurance).

Programming a PM is a very complicated business. A person who posts on many of the PM support groups on MCC—jc76–has gone into detail on some of the changes made to his over the years. I found him a great help in understanding my device.