RIDGID NaviTrack II - Manual (Page 10)

NaviTrack® II
9
Sounds of the NaviTrack® II
In normal use the sound level is driven by the proximity to the
target. The closer to the target, the higher the sound level will
be. A rising tone indicates increasing signal. If the sound level
reaches its highest point, it will “re-scale” to a medium level
and continue signaling from the new starting point.
If desired, force the sound to re-center at a medium level by
pressing the Select key during operation.