KDL Wired Video Doorbell Intercom System 7 inch Color Monitor Panel with Night Vision Video Camera Door Phone Two-Way Audio 12 Ringtones Waterproof for Home Apartment Safe

Features: 1, The distance between the outdoor unit to indoor unit is max 100m in theoretical. 2, This wired video intercom system support to connect max 2 outdoor cameras and max 6 indoor monitors. All of the monitors which connected in a same system should be 4-core or 5 core wires type, while the outdoor unit should be 2-core or 4 core wires type. 3, The outdoor camera can talk with the monit...