User's Manual

Table Of Contents
54
Set parameters.
Tap and ; set Brightness and Screensaver Time.
Tap Clean and the screen will be locked for 30 seconds. During the period, clean the
screen. It restores after 10 seconds.
4.6.6.3 Password Setting
Set login password, arm/disarm password, unlock password and anti-hijacking password of VTH
setting interface. Login password, arm/disarm password and unlock password are 123456 by default,
whereas anti-hijacking password is the reversed login password.
Parameters at this interface are set on main VTH only, and extension VTH synchronizes with main
VTH.
Tap Setting.
Input login password and tap OK.
Select General > User Password.
User password
Enter New Password and Confirm Password.
Tap OK to complete password modification.
4.6.6.4 QR Code
Download the app on your smartphone by scanning the QR code, register the VTH on the app, and
then you can unlock the door, or talk to the VTH, and more directly on your smartphone.
Tap Setting.
Input login password and tap OK.