Axis Wake Research A20 Owner's Manual page 70

The Axis tachometer has an alpha-numeric display that allows the user to access both boat and engine
information. The toggle switch is located on the tachometer. Some information such as the depth and GPS
may not be present, depending upon whether a depth module or PGS puck has been installed.
2016 Axis Wake Research Owner's Manual . . . Page 2-23