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Exercise equipment with electronic components may cause interfering stray signals. To tackle these problems, try the
following:
1. Remove the transmitter from your chest and use the exercise equipment as you would normally.
2. Move the wrist unit around until you find an area in which it displays no stray reading or does not flash the heart symbol.
Interference is often worst right in front of the display panel of the equipment, while the left or right side of the display is
relatively free of disturbance.
3. Put the transmitter back on your chest and keep the wrist unit in this interference-free area as much as possible.
If the RS300X still does not work, the piece of equipment may be electrically too noisy for wireless heart rate
measurement.
Polar RS300X may be worn when swimming. To maintain water resistance, do not press buttons under water. For more
information, visit http://support.polar.fi. Water resistance of Polar products is tested according to International Standard
ISO 2281. Products are divided into three categories according to their water resistance. Check the back of your Polar
product for the water resistance category, and compare it to the chart below. Please note that these definitions do not
necessarily apply to products of other manufacturers.
Marking on the case back Water resistant characteristics
Water resistant Protected against wash splashes, sweat, raindrops etc. Not
suitable for swimming.
Water resistant 30 m/50 m Suitable for bathing and swimming.
Water resistant 100 m Suitable for swimming and snorkeling (without air tanks).
ENGLISH
Customer Service Information 41