Simrad IS20 Combi - Alarm Setup

24 | Changing the default settings
Alarm setup
The IS20 may be set up to sound an alarm if vessel or
environmental parameters exceeds preferred values.
The alarm monitoring is disabled by setting the value to
Off.
Boat speed alarm
Used to give alarm if the boat speed goes beyond a
selected value.
Range Change per step Default value
Off - 50 kn 1 kn Off
50 - 60 kn 5 kn Off