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4/8 channel dvr video surveillance home security dvr
1.Support NTSC / PAL video
2.Pan/Tilt/Zoom RS-485(PTZ)
3.best price

Techcam security cheap dvr digital video recorders

9404/8/16 Standalone Security DVR are real time and hardware based high definition standalone digital video recorder (DVR) with4/8/16  channels

embedded Linux operating system and includes easy operation and control OSD menu system. This DVR supports varies recording modes that includingcontinuous recording, alarm recording, scheduled recording, motion detected recording, net-viewer recording. It supports SATA HD up to 2 pcs of 2TB SATA HD (totally 8TB) which allows continuous recording over 6 months without erasing. With the input/output of video/audio/alarm, remote network access, Pan/Tilt/Zoom (PTZ) camera control and DVD-RW/USB backup, this DVR is perfect for the small businesses and industry.

feature: 1.Real time H.264 high compression
 2.4/8 channels video inputs, 4/8/channels audio inputs
 3.100/120fps for full D1 realtime recording
 4.Those device can support 2pcs of 2TB SATA HD, then it allows continuous recording over 6 months
 5.with the input/output of video/audio/alarm, remote network access
 6.Pan/Tilt/Zoom RS-485(PTZ) camera control,present positions operation
 7.DVD-RW/USB backup
 8..Support fast forward and rewind: x2, x4, x8
 10.Perfect support 3G Mobilephone Surveillance with Symbian, Windows CE, iPhone, Google Android and BlackBerry.
 11.Support TCP/IP,UDP,DHCP,IP Filter,PPPOE,FTP,DNS,DDNS,NTP,UPNP,EMAIL,Alarm Server,ARSP,Wifi.
 12.Detailed event log support
 13.WINDOWS Graphical User Interface, intuitive mouse menu, convenient and easy-to-user operation

14.1,4,8 channel simultaneous realtime playback 

15.Support NTSC / PAL video system

16.Audio Input Support 4, 8,  Channels

17. Support VGA and CVBS(TV) simultaneous output