JB-304 villa video door phone

详情

• Door phone system VI and V*7, V4 to call, monitor, and unlock
• More than *0 melodies for ring selection
• To sure the image clearly at night by IR LED
• Four-wire system, easy to install, and operate
• Accepted to be connected with four indoor phones at most
• Accepted to be connected with four door stations at most to several entrances
• All indoor phones are accepted to call, transfer calling and communicate each other
• Installation of door station by surface and flush to be optional
• CE/RoHS approval
• Water-resistant feature