Magellan Triton 500 - Manual (Page 37)

Profiles 29
ARRIVAL On, Off Turns the arrival alert on or off.
WAYPOINT
PROXIMITY Various Sets distance that the Magellan Triton will
alert you to as you approach a waypoint.
GEOCACHE
PROXIMITY Various Sets distance that the Magellan Triton will
alert you to as you a geocache waypoint.
LOW BATTERY On, Off Sets the alarm to alert you when you have
a low battery condition.