List of featured suppliers of DOOR ENTRY SYSTEMS Audio Visual on Building Products Index
Door entry systems, audio visual refer to a technology that provides both audio and visual communication for the purpose of allowing access to a building or property. It usually includes a camera, microphone, and speaker installed at the entrance, which allows the residents or visitors to see and speak with each other before granting access. This system is commonly used in residential buildings, commercial offices, and other types of properties that require controlled access.
