17Alarms TabContains settings for the unit’s alarms. (For a list of alarms and unit messages, see page 26.) The Alarmtab is divided into two submenu tabs: Sonar alarms and System alarms.Sonar:• Fish — sets alarm/icon to sound/display when unit detects a fish of the specifi ed symbol size.• Shallow Water/Deep Water — set alarms to sound when you enter an area of specified depth thatis too shallow and/or too deep.• Drift — sets an alarm to sound when you’ve exceeded a specified drift depth range. For example, ifthe value is set to 5 ft. and the current depth is 20 ft., the alarm will sound if the unit detects a depthgreater than 25 ft. or shallower than 15 ft.• Water Temperature — sets an alarm to sound when the transducer reports a temperature eitherabove, below, inside or outside the specified values.System:• Battery — sets an alarm to sound when the battery is reaching a critical state of discharge.• Timer — allows you to choose between a Count Dn (Down) or Count Up timer. You may specify aduration for the Count Dn (Down), Stop, or Reset the timer.To set an alarm:1. Use the ARROW KEYPAD to highlight desired submenu tab of the Alarms Tab.2. Highlight the field below the alarm name you wish to activate and press ENTER.3. Change the mode to the desired setting and press ENTER.4. Highlight the next field to the right and press ENTER, then enter the desired settings and pressENTER to fi nish.5. If you want the alarm to display and beep until acknowledged, highlight the ‘Persist’ box and pressENTER to place a check mark in the box.Unit OperationMain Menu OptionsMain Menu -Alarms/Sonar TabMain Menu -Alarms/System Tab