Portable Fish Finder 100M/328FT Sonar Depth Sounder Alarm Lake Sea Fishing
(Sensitivity indicator2.Battery save on/off3. Fish alarm on/off4. Set up key5.Battery strength indicator6.Water depth indicator7.Backlight on/off8. Fish depth indicator9.Enter key10.Power On/Off. 3) Depth Capability: 328feet(100m).