SOUNDER SECTION: 

Frequency: Single frequency: 20, 24, 28, 40, 45, 50, 60, 70, 75, 80, 150, 220kHz

Range: Customized 7 ranges 

Phased Range: 0-999m

Part Expansion: Customized 8 ranges

Display mode: Single frequency mode, Auto range mode, Partial expansion mode, Navigation data mode.

Data Display: Depth, Depth scale, Shift, Expansion start, VRM, Timer, Water temperature