We are an exalted manufacturer and supplier a lager series of Grade-A DVR Security Systems to our valuable clients. The offered systems are widely used in a large number of domestic and commercial sectors for the purposes of displaying captured images. Offered systems can easily attached with computer or T.V., our DVR Security Systems are available in various models and specifications at market leading prices. Features 4CH DVR supports 960H real time recording for each channel; 8CH DVR supports 960H@ 15fps recording or D1 real time recording for each channel; 160 H DVR supports 960H@7fps or D1@7fps recording or CIF real time recording for each channel. Adopt standard H.264 compression format to get high-quality video at much lower bit rate Intuitive and user-friendly Graphic User Interface (GUI), Windows style operation by mouse Multi-mode recording: manual/timer/motion Playback: support 4/8/16CH simultaneous playback Search: calendar/time, events (motion) Express and flexible backup via USB, network Pentaplex: preview, record, playback, backup and remote access DHCP, DDNS, PPPoE network protocol and CMS supported Remote control via IE or CMS: preview, playback, backup, PTZ and configuration Dual streaming technology to encode recording stream and network stream separately. User can adjust network stream to fit bandwidth without changing recording quality Multi-user online simultaneously Authorization management, log review and DVR status review Support HDMI, true high resolution display Support PTZ preset and auto cruise, up to 128 presets and 8 cruises Powerful smart phone surveillance supporting Windows phone, Google phone, Blackberry and i Phone, compatible with 36 Complete SDK software available, easy to integrate with other applicationsSpecification Model TD-2304SS-C TD-23OBSS-C TD-231BSS-C System Compression 1 Standard H.264 CPU Cortex A9 OS Embedded Linux Video Input BNC x 4 BNC x 8 BNC x 16 Output BNC x 1 VGA x 1 : 121920 x 1080HDMl x 1: 1 21920 x 1080 Audio Input RCA x 2 Output RCA x 1 2-way audio 0 Take up 1CH audio input Record Resolution 960H/D1/CIF 960*576/704*576/352*288(PAL)960*480/704*480/352*240(NTSC) Frame Rate (fps) 100(PAL) 120(NTSC) 100/200/200(PAL)120/240/240(NTSC) 100/400/400(PAL) 120/480/480(NTSC) Bit Rate 128K~2 Mbps Encode VBR/CBR Quality 6 Level Mode Manual, Timer, Motion File Manager Lock, unlock, reserving time, redundancy Play back Playback 4CH 8CH 16CH Search Time/calendar search, event (motion) Smart Search Apply different colors to display whether a channel in a period of time recording or not Function Play, Pause, FF, FB; Digital zoom Alarm Mode Motion, Video Loss Input NO Output NO Triggering Record, PTZ move, e-mail, etc Network Interface RJ45 Protocol TCP/IP, UDP, DHCP, DNS, PPPOE, DDNS Others 10 users online, dual stream OS i Phone, Blackberry, Android, Windows phone Cell Phone Function Multi-screen surveillance(for certain model), record, snapshot, PTZ control, save the device list HDD SATA x 1 , support 2T per HDD RS485 RS485 x 1, support PTZ and keyboard USB USBZ.0 x 2,one for mouse, another for USB backup device Remote Controller Optional Others Power Supply DC: 12V Dimensions 300 mm* 270 mm* 58 mm(W* D* H) Working Environment 0~50C, 10%~90% (Humidity)