Securing areas which are under threat is very important for the security agencies. Some of these areas are Military installations, Banks, Airports, Convenience stores, Casinos, etc. To tighten up their security, these areas require security units to be installed.
CCTV Cameras are one of the most commonly used units for securing areas which are under surveillance. Each camera has its own monitor so that CCTV monitoring can be done efficiently. The technology of these units has been enhanced over the past few years. Previously, they had switch boxes that were used by the operator to switch from one camera to the other. Now, operators can see multiple camera views in one single monitor. This is possible only because of the enhancements in these units over the years.
Along with CCTV Cameras, you will also find Digital Video Recorders (DVR) used for securing these areas. DVRs are hidden cameras and self contained systems that do not require any external recorder. This unit has an inbuilt SD card which is similar to what you use in your normal digital camera. It helps to capture motion activated video and store it, so that it can be monitored later. To view your recording later, you will need a PC or TV with video inputs. Since there is no external recorder required, your money and time both are saved. Another benefit is that SD card comes in various sizes, and depending on the size of your card; you can leave the DVR to record even for weeks at one time.
Keep in mind, monitoring these units is as important as installation. Specially, the CCTV should have a CCTV monitoring room so that you can make proper use of what you have invested in. The area is secure only if the installation and monitoring is efficient.