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CCTV which stands for closed circuit television was one of the first surveillance cameras that went out in the market. The cameras capture the images and then send it to the DVR through cables and into the monitor for viewing. The DVR has two basic purposes: to convert the signal into video analog and to record the video into its hard disk drive. CCTV cameras are wired cameras. This means that you would have to place the cameras on a specific location and then wire them all the way to the monitoring station. The wireless CCTV is called the IP camera. With a LG CCTV in place you can expect to have eyes behind your back .
In today's high tech world, using technology to maintain control over your property and employees is becoming a more acceptable practice. Even though these security devices are really advanced, they are affordable and can easily be installed. Entities such as governments, gas stations, manufacturers, hospitals, and schools can also benefit from the use of surveillance equipment. The system will allow them to easily identify visitors and employees; ensure security within their premises; prevent the occurrence of theft; and monitor work areas where hazards are common. If you don't have the funds for a working video surveillance system, just installing four to twelve dummy cameras can fool many criminals into thinking you have a real system in place.
PTZ Security cameras, stand for Pan Tilt and Zoom Camera , they are the most expensive and most advance security camera. They often do the job of several cameras since they can monitor more than just one area. These cameras are often used in conjunction with human security - the security guard who is monitoring the camera can move the camera if he wants to and zoom in to a particular area.
Pan, tilt, and zoom cameras are some of the most versatile cameras on the market. They can pan (move left and right), tilt (move up and down), and zoom in or out. Additionally, PTZ domes can rotate 360 degrees and view an object directly below them. A camera's motion is remotely controlled with a keyboard. Patrol movements can also often be programmed. These allow users to pan, tilt, and zoom into a specific area with just a push of a button. Preset patterns can also be triggered automatically even when the user is not near the keyboard. This is done by connecting devices such as magnetic door contacts, motion detectors, and panic buttons directly to the camera. When a certain device is triggered, the camera can move to look in a predetermined specific location.