User's Manual

15
W hat if t he he ar t ra t e
re a ding be c om es ex t re m ely
high?
Electr om agnetic signals fr om
outside sources m ay cause
abnorm ally high hear t rate
readings. Com mon sources of
electr omagnet ic signals are
high v olt age power lines,
electr ic m otors and m obile
phones. Your hear t rate should
return t o norm al once you
m ove away from the source.