AV-04FD and AV-04SD are reliable and vandal-proof individual entrance panels. Each panel provides a perfect video image and sound transmission to the indoor monitors. There is the option to individually engrave some text or logo on the panels.
The main difference between devices is the type of installation. AV-04FD is a panel with flush-mounting installation, and AV-04SD requires wall-mounting installation.
The distinguishing feature of the AV-04FDI and AV-04SDI models is the inclusion of built-in inductive loops, which greatly improve sound transmission for users with hearing impairments, while retaining all the functionality of the previous versions.
Call button backlight statuses
The call button blacklight can display the following situations:
permanently lights in standby mode;
blinks rapidly during a call;
blinks slowly during a conversation;
blinks rapidly twice when the lock is opened.
Appearance
