to build your home security and surveillance system

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If your home is recently frequent stolen things, you need to install video function with closed-circuit television, and you have better use your computer or even mobile phone to get a remote view. So, how to build your own home security and surveillance system?
Firstly you need to purchase equipment:monitor camera, video wire, joint, 4 channel or 8 channel or 16 channel(enough) DVR(Digital Vedio Record) installed with hard disk. of course 4 or 8 or 16 CAMERAS are needed. the power and the lines are included. the only thing you should do is to connect the DVR and the cameras ,and your monitor.it's simple but professional. any problem, you can ask the seller. 
in addition , 500GB-1TB hard disk are enough. i will write another guide about how to connect DVR and camera and monitor another day, 
it's quite simple for us people.
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