It is recommended that you go to the market to buy the kind of infrared camera, as long as about three hundred dollars or so. Like this kind of:
It infrared irradiation distance is about 30 meters, the key is to monitor the night can also see the image.
Additionally you need to use a hard disk recorder, with a four-way embedded hard disk drive, about 1200 yuan, and then install a hard disk, about 300 yuan, there is a display, the home has a computer, you can with the desktop computer display **** with. DVR use the following kind of:
Additionally still have to do is to buy a power transformer, DC 12V/1A, to the camera power supply, and then buy dozens of meters of video cable, and power cord, video cable at 1.5 yuan / meter, power cord at 1.2 yuan / meter, the number of their own. Before you buy the cables, plan how to wire, how long distance, when you buy the cables, ask the store owner to help you make the video header. Don't forget to buy some insulating tape and wire card, ready to do, their own home, in fact, it is very simple, only need to install the camera on the wall, cable connection, fixed with a wire card stapled on the line. One end of the power transformer is connected to the socket, and one end is connected to the power cord of the camera.
This is done, the total cost of less than 2,000 yuan, the future if you want to increase the camera, directly mounted to connect in on the line. I forgot to tell you where to buy, you go to the local electronics market in Nanjing to go around, buy cameras and hard disk recorders, do not be fooled. Camera remember these parameters: the number of lines in the 540 line above, signal-to-noise ratio > 50dB, infrared lamp life > 20000 hours, irradiation distance > 25 meters, power supply DC12V/400mA, protection level IP66 or more.
Parameters of DVR: video playback clarity>4CIF/road, support for VGA/BNC output, support for SATA2 hard disk with remote control, power supply AC24V or AC220V. hard disk for SATA2 high-speed hard disk, capacity>320GB, serial interface.
The rest of the tools and small accessories: an electric hammer, hammer, screwdriver, insulating tape can be.