![]() ![]() If the signal is weak when the sensor is placed right under pectorals (recommended position), move the sensor left or right, lower or higher to find the best signal. Try different sensor positions to find the best for you. ![]() If the standard-size strap does not fit satisfactorily, larger and smaller straps are available as accessories. ![]() If the strap is loose, the movement of the electrodes will disturb electrically measured signal detection. If the strap has textile electrodes, it is essential that you moisten them thoroughly under the tap water before exercise. If your elastic strap has plastic electrodes, saliva is a good conductor as well. When you start to sweat the contact will improve because the salt in the sweat conducts the electrical signals very well. At the beginning of the exercise session your skin may be dry and the moisture will help ensure better contact. Moisten the electrode areas of the heart rate sensor.To ensure accurate detection (needed before measuring is possible) the contact between skin and electrodes needs to be constant. If the electrically measured signal is weak, the signal can get disturbed more easily. The electrically measured signal strength can depend on chest form, the anatomical location and position of the heart, position of the electrodes, and the amount of body fat. The type of the electrically measured signal slightly varies from person to person. This is where the signal is the strongest. Polar heart rate sensor measures the signal electrically from the chest. ![]()
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