
Closed circuit television, otherwise known as CCTV, is a type of video monitoring system that has been around since the 1940s, when it was first used by Siemens AG to observe rocket launchings in Peenemunde, Germany. CCTV systems are based on strategically-placed video cameras, which capture footage and then broadcast it to either a private (closed) network of monitors for real-time viewing, or to a video recorder (either analog or digital) for later reference. Today we who have introduced fiber optic tool kit , fiber optic tool kit , visual fault locator ,CWDM and one click cleaner will tell you what is CCTV, and how is it used?
...







