EverFocus EDR810H Insruction Manual page 61

ALARM DURATION: Buzzer noise and event record duration of an
alarm, from 1 sec to 99 seconds. The default value is 5 seconds.
NETWORK ALARM:
YES: To enable network alarm.
NO: To disable network alarm.
SEND EMAIL:
YES: Send an email when no HDD has been found.
NO: Will not send an email when no HDD has been found.
The email address can be set in the NETWORK SETUP MENU.
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