B U T T O N S A N D T H E I R F U N C T I O N S

RESET

SCROLL UP

SCROLL DOWN

START/STOP/OK

START/STOP/OK

Start heart rate measurement

Start the stopwatch

Stop the stopwatch

Activate the displayed mode

Lock your selection

SCROLL UP

Move forward to the next mode

Select the desired value (up)

SCROLL DOWN

Move backward to the previous mode

Select the desired value (down)

Backlight on

Signal sound on or off

RESET

8

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Polar M21, M22, M51, M52 user manual T T O N S a N D T H E I R F U N C T I O N S