This product is either discontinued or we cannot get that from suppliers.
Dahua DHI-VTO1210B-X Apartment Outdoor Station 3 Inch Stn Screen, Night Vision & Voice, Sensor: 1/3Inch 1.3MP CMOS, Lens: 3.6mm, Audio Input: Omnidirectional Mic, Audio Output: Built-in Speaker, LCD Screen: 3Inch STN 128x64, Ethernet: 10M/100Mbps, Power: DC 12V.
The DHI-VTO1210B-X Outdoor Station enables tenants to view and talk with visitors and remotely unlock doors from an in-unit color indoor monitor.