| Physical Property | |
| System | Linux |
| RAM | 64MB |
| ROM | 128MB |
| Front Panel | Plastic |
| Power Supply | PoE (802.3af) or DC12V/2A |
| Wi-Fi | IEEE802.11 b/g/n,@2.4GHz (Optional) |
| Installation | Surface Mounting |
| Dimension | 123 x 121 x 23.2 mm |
| Working Temperature | -10℃ - +55℃ |
| Storage Temperature | -40℃ - +70℃ |
| Working Humidity | 10%-90% (non-condensing) |
| Display | |
| Display | 4.3-inch TFT LCD |
| Screen | Capacitive touch screen |
| Resolution | 480 x 272 |
| Video | |
| Video Codec | H.264 |
| Video Resolution | 720P Max |
| Audio | |
| Audio Codec | G.711 |
| Networking | |
| Protocol | SIP, UDP, TCP, RTP, RTSP, NTP, DNS, HTTP, DHCP, IPV4, ARP, ICMP |
| Port | |
| Ethernet Port | 1 x RJ45, 10/100 Mbps adaptive |
| Doorbell Input | 1 |
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Datasheet 904M-S3.pdfDownload
