Alarm Volume; Depth Alarm; Fish Id Alarm - Humminbird 1158c Combo Installation And Operation Manual

Alarm Volume allows you to adjust the volume of the alarms.
Depth Alarm sounds when the depth becomes equal to or less than the menu setting.
Fish ID Alarm sounds when the Fishfinder detects fish that correspond to the alarm setting.
Fish ID Alarm will only sound if Fish ID+™ is on.
For example, if you've set the Fish ID Alarm to sound for Large fish only, the Fish ID alarm will
sound when a large-sized fish is detected.

Alarm Volume

Settings: Mute, 1 - 10; Default = 5

Depth Alarm

Settings: OFF, 1 to 100 feet, or 0.5 to 30 meters [International Models
only]; Default = OFF

Fish ID Alarm

Settings: Off, All, Large/Medium, Large; Default = Off
Off
All
Large/Medium
Large
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Alarms Menu Tab