Specifications

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North Reference
This option allows you to define the type of North refer-
ence you want ProMark3 to use. This can be True North,
Magnetic North, Military True North or Military Magnetic
North.
After selecting the North Reference option from the Setup
menu, tap the desired North Reference from the displayed
list.
Beeper
This option allows you to enable (On) or disable (Off) the
beeper.
After selecting the Beeper option from the Setup menu,
tap the desired option.
Reset Trip
If you tap this option, a warning message is displayed ask-
ing you to confirm your choice. To reset the trip odometer,
tap the Yes button.