POLAR S720i - Manual (Page 13)

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How to put the transmitter on
1. Attach the transmitter to the elastic strap.
2. Adjust the strap length to fit snugly and
comfortably. Secure the strap around your
chest, just below the chest muscles, and
buckle it.
3. Lift the transmitter off your chest and
moisten the grooved electrode areas
on the back.
4. Check that the wet electrode areas are firmly
against your skin and the Polar logo is in a
central, upright position.
How to start measuring your heart rate
1. Begin with the display that shows
the time of day.
2. Keep the wrist receiver within
1 metre/ 3 feet of your transmitter.
3. Check that you are not near other people
that have heart rate monitors, high voltage
power lines, televisions, mobile phones or
other sources of electromagnetic disturbance.