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4 Channel Embedded Linux MJPEG 7" LCD PTZ USB SATA HDD DVR SKY-8204ST


Retail Price:
USD$ 617.98
Wholesale Price:
Wholesale Price
Quantity 2-45-910-29≥30
Price USD$ 305.58USD$ 291.66USD$ 277.74USD$ 259.17
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Power Adapter:
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  • Overview


  • OS: Embedded Linux
  • Compression: MJPEG
  • Video I/O: NTSC:4CH BNC Input/1CH BNC output, 1CH S-video output, PAL: 4CH BNC Input/1CH BNC output, 1CH S-video output
  • Audio I/O: 4CH BNC Input/ 1CH BNC Output
  • Displaying Speed: NTSC:120 FPS(4 x 30 FPS ), PAL:100 FPS(4 x 25 FPS )
  • Recording Speed: NTSC:30 FPS 4 x 30=120FPS, PAL:25 FPS 4 x 25=100FPS
  • Recording Mode: Manual, Scheduling, Alarm, Motion &Detection;
  • Image Quality: High, Middle, Low are selectable
  • Recording Resolution: 704 x 240,352 x 240(NTSC) 704 x 288, 352 x 288(PAL)
  • Playing Mode: 1CH or 4 CH (Dualplex)
  • Search Mode: By Time/ Event /Channel
  • HDD: > 200G,ATA-100(Without HDD)
  • Alarm I/O: 4CH Input/1CH Output
  • Network: IE/PPPOE/DDNS
  • Remote Control: Yes
  • Mouse Control: PS/2
  • USB Backup: USB2.0
  • Language: Simplified Chinese, Old Chinese, English
  • Monitor: 7 inch hidden LCD monitor (China Patent NO.200730174963.4)
  • Sata Backup: YES
  • Software Upgrade: USB
  • Power Suplly: 12V/ 4A DC
  • Working Temperature: -10℃~+50℃
  • Working Humidity: 10%-90%


  • Advanced RTOS, Motion JPEG compression
  • Support CIF ,Half-D1
  • Real time recording, 4CH Video Input & 4CH Audio Input
  • USB to upgrade software
  • PS/2 Mouse control, PTZ and network function
  • Perfect alarm and operation log of the HDD Digital Video Recorder are convenient for analyze and detection
  • Watch-dog built-inside, multi- language versions are selectable
  • Built in 7 inch hidden LCD monitor, the 4Channel Digital Video Recorder is convenient to use (China Patent NO.200730174963.4)
  • Applied in small surveillance area, such as House, Small Super Market, Gas Station, Villa, etc
  • This is the most stable, the best user friendly and the most advanced HDD Digital Video Recorder on the market
  • The HDD Digital Video Recorder provides 'always-on' recording capability, with variable resolution, image quality, image rate, and audio recording; all are adjustable per channel


4 Channel Embedded Linux MJPEG 7

  • 4 Channel Embedded Linux MJPEG 7inch LCD PTZ USB SATA HDD DVR
  • Perfect alarm and operation log of the 4Channel DVR are convenient for analyze and detection

4 Channel Embedded Linux MJPEG 7

  • Applied in small surveillance area, such as House, Small Super Market, Gas Station, Villa, etc

4 Channel Embedded Linux MJPEG 7

  • Accessories included
  • Advanced RTOS, Motion JPEG compression

Size in Detail:

4 Channel Embedded Linux MJPEG 7

How to Replace a DVR Hard Drive:

  • Disconnect your DVR by unplugging any cables connected to it, including the power cable. Remove the screws located on the back of the unit that hold the top cover in place. There are usually two to six of these screws, depending on the model of DVR. Lay these screws in a safe place where they won't get lost, and slide the cover off
  • Locate the hard drive. This is a rectangular metal unit that measures 3 1/2 inches wide. It is usually located away from the other hardware, often in its own bracket. There will be two to four screws holding it in place. Remove these, disconnect the cables connected to the drive, and slide it out of the system
  • Check the label of the drive to see if it is IDE or SATA. It will say which one of the two interfaces it uses. Any replacement desktop hard drive of the same interface type will work in your DVR. Avoid using a laptop drive, because they won't fit and aren't designed for the high-stress environment of video streaming
  • Place the new drive into the brackets, and replace the screws that were removed from the old one. Plug the data and power cables into this drive. They will insert the same way they came out of the old one. Once the drive has been installed, put the cover back on the DVR unit, and replace the screws. Hook the DVR back up to the television, and it will be ready to record

How to Copy From a DVR to an External Hard Drive:

  • Install video software on your computer. To properly process your data transfer, you need video software, which you can get from computer and electronics retailers or online. Simple, easy-to-use programs can be downloaded for free. Use reputable sites, such as CNET.com, to find some of the more reputable free programs. More advanced programs, with sophisticated editing capabilities, will usually only be available for purchase
  • Connect your computer and DVR. In order to copy programs to your external hard drive, you need to transfer them to your computer. For older systems, and especially for desktop computers, you will need to use use RCA connectors to connect the DVR to the computer. RCA connectors are color-coordinated audio-visual cables used to connect electronics components, such as stereos and receivers, and they can be used with some computers and DVRs as well. Plug the yellow ends of the cable into the video jacks on the machines, then plug the red and white ends into the audio jacks. If you have a newer system, use USB cables to connect the computer and DVR. With a TiVo DVR and a wireless home network, you can connect your components wirelessly if you download proprietary TiVo software
  • Transfer the program to your computer. Choose the program you wish to transfer from your DVR then press "Play" while pressing "Record" on your computer software program. The program should transfer in real-time. Monitor the recording and, when finished, check for quality
  • Copy the program to your external hard drive. Using the video software on your computer, select your external drive as the destination for your next copy. Select the copy you just made from the DVR and make another copy on your external hard drive. Again, monitor the transfer and check for quality when you are finished

Package Included:

  • 1 x Digital Video Recorder