Acumen HR427 Specifications download pdf (Page 5)

VETTA BIKE MOUNT

BUTTON FUNCTIONS

• LIGHT ALARM Button Press momentarily to light display

3 seconds. Press and hold to keep light on longer & hold 3

seconds to toggle alarm ON/OFF for the current mode displayed.

• MODE/SET Button Press momentarily to change modes. Press &

hold for SET.

• START/STOP/RESET Button Press momentarily for start/stop.

Press and hold to reset stopwatch.

Note: All button produce a short beep when pressed. Press and

hold commands also produce another beep.

Mode/Set

Start/Stop

Reset

The head unit of the HR427 can be detached from the wrist strap

mount and inserted into the handlebar mount as shown.

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Acumen HR427 Specifications Page 5