Polar ZoneLock

Simply the easiest way to set a target zone.
You can activate a target zone with a press of a button during your ride. You can also deactivate the zone alarm just as easily – by pressing a button.

Simply the easiest way to set a target zone.
You can activate a target zone with a press of a button during your ride. You can also deactivate the zone alarm just as easily – by pressing a button.
