Sigma Onyx Pro zwart

The digital coded ONYX PRO with preset and individually adaptable endurance and interval training ranges is new to the marketplace. The training zones can either be calculated in line with IAT (individual anaerobic threshold) or maximum heart rate.

The detailed analysis of the training units is ideal for all professional and ambitious sportspeople.
A magnification function for improved readability and a new kind of navigation for intuitive menu guidance are innovations that characterise this Heart Rate Monitor. 7 memory locations, a lap counter (50 laps with average and maximum heart rate indications), a light and a battery change compartment round off the features of this precise heart rate watch.

A real professional.

- Digital coded transmission
- 4 Heart Rate functions
- 6 time functions, including countdown and alarm
- Training mode based on max HR or individual anaerobic threshold (IAT)
- 3 pre-programmed endurance training modules
- 1 programmable endurance training module
- 2 pre-programmed interval training modules (time or pulse driven)
- 1 programmable interval training module
- Training mode with 3 adjustable HR zones
- Lap Counter (50 Laps)
- Total values per week, per month, and since reset
- Marathon competition counter
- Memory for 7 Training sessions