The Dahua VTO4201F-P1 is a modular video intercom unit with a 2 MP camera and wide-angle viewing. It supports two-way audio, remote door unlocking via an app, PoE, and recording to a microSD card of up to 256 GB.

• Horizontal viewing angle: 168.6°
• Vertical viewing angle: 87.1°
• Diagonal viewing angle: 176.7°
• Camera: 1/2.9' CMOS
• Video compression: H.265, H.264
• Power supply: 12 VDC, 2 A, PoE (802.3af/at)
• Protection: IP65
• Impact resistance: IK07
• Dimensions: 100 mm × 100 mm × 49.4 mm
• Operating temperature: -30 °C to +60 °C
• Operating humidity: 10%–90% (RH), non-condensing
• Port: 1 × RJ-45, 10/100 Mbps
• Alarm output: 1
• Power output: 1 port, 12 V/600 mA
• Lock control and door status detection
• Operating system: Embedded Linux
• Interoperability: CGI, ONVIF
• Network protocols: UDP, TCP, IPv4, DNS, RTSP, UPnP, SIP, P2P, RTP