IR distance: 8m Video compression: H.264 Minimum sensitivity: infrared 0 lux Video definitions: PAL: 352 x 288 pixels (CIF), 704 x 288 pixels (2CIF), 704 x 576 pixels (D1) NTSC: 352 x 240 CIF), 704 x 240 pixels (2CIF) and 704 x 480 pixels (D1) Video parameters: brightness, hue, contrast, saturation and image quality Streaming format: optional video streaming or audio and video composite streaming Video frame rate: CCD PAL: 1 to 25frames/second; NTSC: 1 to 30frames/second Video compression: bit rate: 16Kbps to 2Mbps Audio input: one-channel, linear input Audio compression: G.726 Audio output: one-channel, linear output Supported protocols: TCP, UDP, IP, HTTP, FTP, SMTP, DHCP, DNS,ARP, ICMP, POP3, NTP, IPsec, UPNP, RTP and RTCP System interface: 10M/100M self-adapting Ethernet port, 1 RS485 port (supports transparent protocols) Alarm input: one-channel on/off input Alarm output: one-channel on/off output Input power: 12V DC Maximum power: less than 6W Operating temperature: -10 to +55 degree Celsius Operating humidity: 10 to 85% RH