Suunto D4f has audible and visual alarms designed to let you know when important limits or presets are being reached.
The one audible alarm type indicating low priority:
|Alarm type||Sound pattern||Duration|
|Low priority||0.8 s sound + 3.2 s break|
In addition, there are two audible guidance notifications:
|Instructional beep||Sound pattern||Interpretation|
Suunto D4f displays information during the alarm breaks in order to save battery life.
Low priority alarms:
|Alarm type||Alarm reason|
Low priority alarm, repeated twice.
Maximum depth value blinks
|Defined maximum depth or the maximum depth of the device exceeded. Acknowledge the alarm by pressing any button.|
|Low priority alarm, repeated twice; dive time value blinks||Defined dive time exceeded. Acknowledge the alarm by pressing any button.|
|Low priority alarm. Maximum depth value blinks.||Defined depth reached. Acknowledge the alarm by pressing any button.|
Low priority alarm,
Surface time value blinks.
|Duration of surface time until next dive. Acknowledge the alarm by pressing any button.|
|Symbol on display||Indication|
|Do not fly (after single 10-minute free dive)|