DAHUA - DHI-VTO6521H - Apartment Door Station

4.3 inch IPS display, touch button;
2MP low illumination, high definition, and star light image sensor;
auto illumination;
full duplex communication;
support management platform and voice call through app;
multiple verification methods: password, IC card, and remote unlock;
Surface mount or flush mount;
IP 65 (silicone sealant is needed, see the quick start guide), installed outdoors