If there are few roads, you can use your own computer as a monitor. It is recommended that you configure it as follows:
1. A 4-channel video capture card, with several hundred pieces plugged into the computer motherboard.
2. A dedicated surveillance camera is about 100 yuan, which is several hundred yuan more expensive, and tens of thousands of high-end cameras are unnecessary.
3. Monitor special monitor 1000 or above. If you save money, use a computer monitor instead. However, the effect of the monitor is not as good as that of the monitor, and its service life is short. It is best to use a professional monitor to monitor. Recommended brands: Japan Sony Monitor, Japan JVC Monitor, Shenzhen Tiger Monitor, Zhuhai Sitong Monitor, Guangzhou Shixiang Monitor, Shenzhen Skyworth Monitor, Haizhuo Monitor, Suzhou Taipower Monitor, Huizhou TCI Monitor, etc.
However, you need to install a more complex security monitoring system, which is unprofessional and unstable with the computer host, which will cause great trouble to the later after-sales maintenance.
I suggest you use 16 hard disk video recorder directly. A Taikang or Dahua 16 hard disk video recorder, with a Tiger brand security display, CRT flat screen display Tiger brand is not bad, much cheaper than LCD display, 16 infrared waterproof integrated camera, domestic Shenzhen brand, using Seagate 7200 rpm hard disk. Wiring can be done by several experts. If you want to show this plan to your customers.
This answer has been very detailed. All you have to do is put my list of security monitoring equipment into exel form, fill in the quotation, and then you can show it to your customers.