Dahua VTH5421 Series User Manual

Interface Operation 77
Figure 6-42
Alternatively, select “Info > Security Alarm”, and the system displays “Security Alarm” interface,
as shown in Figure 6-43. “All” tab displays all alarm info of the system, whereas “Unread” tab
displays unread alarm info.
 Press [Edit] to select the info; press [Delete] to delete the selected info.
 Press [Clear] to delete all records after confirmation.
Figure 6-43
6.7.2 Guest Message
 When a SD card is inserted into the device, this function is valid. All messages are stored

Dahua VTH5421 Series Specifications

General

Brand	Dahua
Model	VTH5421 Series
Category	Intercom System
Language	English