User Guide

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Note that in addition to exercise intensity, medications for heart,
blood pressure, psyche, asthma, breathing etc. as well as some
energy drinks, alcohol and nicotine, can affect heart rate.
It is important to be sensitive to your body’s reactions
during exercise. If you feel unexpected pain or excessive fatigue
when exercising, it is recommended to stop the exercise or
continue at a lighter intensity.
Notice to persons with pacemakers, defibrillator or other
implanted electronic device. Persons who have a pacemaker
use the Polar Heart Rate Monitor at their own risk. Before
starting use, we always recommend an exercise test under
doctor’s supervision. The test is to ensure the safety and reliability
of the simultaneous use of the pacemaker and the heart rate
monitor.
If you are allergic to any substance that comes into contact
with the skin or if you suspect an allergic reaction due to
using the product, check the listed materials in the "Technical
Specifications" chapter. To avoid any skin reaction risk with the
transmitter, wear it over a shirt. However, moisten the shirt well
under the electrodes to ensure flawless operation.
The combined impact of moisture and intense abrasion may
cause a black color, which might stain light-colored clothes
especially, to come off the transmitter's surface.