Originally Posted by
mike868y
AFAIK, the pt headunit only searches for devices for a certain amount of time (for example, when you first turn the head unit, you see the rotating lines on the power and hr displays). If it can't find anything, it just stops searching and displays -- instead of a number.
This is true. You have to initiate 'find' again to get it to see the HR again after a period of time.