What kind of material is needed to install the surveillance camera?
3, each camera installed 12V transformer one. About 15-25 yuan / month
2, calculate the number of cameras, and now the general camera 480TVL SONY CCD price between 270-380. Outdoor 50-80 meters of infrared light irradiation distance is enough, high-power infrared lighting equipment will make a lot better at night. But it was black and white at night.
4, the number of video recorders, embedded professional hard disk video recorders have 4,8,16, the greater the number of road options can record the number of head more. Zhejiang Dahua video recorders for the 4-way 950 yuan or so. 8 Road, about 1,200 yuan 1615 yuan or so. If there are idle computer can also be installed to install the card to soft compression card for the column 4 Road 260 8 Road 380 16 Road 650
