CCTV with DVR's (Digital Video Recorders) or IP cameras with NVR's (Network Video Recorder) are systems that allow the owner to both monitor as well as record activity on his or her property.
If you’re curious about suspicious activity or would like the convenience and security of viewing who is at your front door, then a CCTV camera system is what you need.
There are plenty of options when it comes to digital cameras, DVR’s, IP cameras and NVR's. When choosing cameras, it all depends on the application, if you want to see near or far, whether you prefer color or black & white, if you want them to be seen or installed covertly, and if the recording time is day / night or both. The wide selection of DVR’s range from basic 500GB hard drives to fully programmable multi-gig networkable drives with DVD rewritable capabilities. Basically, your options are endless with a CCTV camera or IP camera system.