Operation Manual

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Troubleshooting
The distance measurements are very imprecise
The watch uses the step length measured during calibration to estimate
the traveled distance.
Recalibrate the step counter. Calibrate it for walking and for running and
use extra care during the calibration.
Running on uneven surfaces may also result in bad calibration.
The heart rate is not shown or is shown incorrectly
Make sure the chest belt is positioned correctly and fits well
Your skin should not be too dry or too cold
The contact areas can be slightly moistened to improve function
Electromagnetic interference may have an adverse effect on reception
The distance between watch and chest belt must be under 60cm
Other heart rate measuring devices within a 2m range may also cause
interference
Wireless bicycle computers may cause interference
The batteries may be low and require replacing
The display is unreadable / the light does not work
Replace the batteries