Garmin GPSMAP 495 User Manual download pdf (Page 110)

102 GPSMAP 495 Owner’s Manual

Main Menu > Alarms Tab

System Alarms Sub Tab

Clock—sets an alarm based on the unit’s clock. Select On, and then

enter a speciﬁc time that you want the alarm to sound. The unit must

be on for the clock alarm to work.

Ext. (External) Voltage

—sets an alarm to sound when the external

voltage drops below a speciﬁed amount. Select On, and then enter a

speciﬁc voltage.

DGPS—sets an alarm to sound when the unit loses a differential ﬁx.

Accuracy—sets an alarm to sound when GPS accuracy falls outside

of the user-set value. Select On, and then enter a speciﬁc distance.

Sonar Alarms Sub Tab (Marine Mode Only)

You must be receiving sonar NMEA data for Sonar alarms to work.

Sonar Alarms Sub Tab

Shallow Water and Deep Water—sets an alarm to sound when you

enter an area of water that is too shallow or deep.

Water Temp

—sets an alarm to indicate if the water temperature has

exceeded or dropped below a speciﬁc temperature, or fallen outside/

inside a speciﬁc temperature range. Select Above or Below and then

enter a speciﬁc temperature, or select Inside or Outside and enter a

range of temperatures.

Drift—sets an alarm to sound when you have exceeded a speciﬁed

drift distance. Select On, and then enter a speciﬁc distance.

Fish—sets alarm to sound when unit detects a ﬁsh of the speciﬁed

symbol size.

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Garmin GPSMAP 495 User Manual Page 110