POLAR M21 User Manual
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B U T T O N S A N D T H E I R F U N C T I O N S
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
SCROLL DOWN
RESET
START/STOP/OK
SCROLL UP
M52 man USA GBR A 2001
10/12/01, 12:46
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