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| The Sigma Onyx Pro Heart Rate Monitor features high quality technology an easy menu guide and is a very attractive design. The Sigma Onyx Pro Heart Rate Monitor is digital and features coded radio-transmission of heart rate values as data packages. This allows secure transmission of all data, certainly without interruption also during training in the group. The Sigma Onyx Pro Heart Rate Monitor is designed as a competition heart rate monitor for meticulous athletes. The Sigma Onyx Pro Heart Rate Monitor is simple to use and incorporates all of the Onyx Fit functions plus training units after maximum heart rate or individual anaerobe threshold, 3 pre-programmed stamina trainings, 2 pre-programmed interval trainings To document the training sessions there is a memory for detailed training analysis and total values – even over weeks, months and any freely selectable period of time. Sporting activities are not hindered by the dark thanks to its illuminated display. All Sigma Onyx Heart Rate Monitors are waterproof, have a back-light, stopwatch and a battery change compartment. There is no loss of data while changing the battery. |
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