outdoor cctv systems
What are the best outdoor security camera systems? What is the best CCTV system?

Network video recorder (NVR) is a specialized computer system that includes a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device.

Shop IP Cameras and Wireless Network Cameras from D-Link, Netgear, Nest LaView Wi-Fi Wireless 1080P IP Camera Security System, 4-channel H.265 
The number of infrared LEDs used in a camera determines how far your outdoor security camera will be able to clearly show what's outside your home. Look for