Important Information You Need to Know Before Buying CCTV Cameras
CCTV or Closed Circuit Television cameras are essential tools installed in a particular area for monitoring. There are modern CCTV systems that comprise several parts used simultaneously for proper monitoring and detection, including DVR, cameras, hard disk drive, cables, monitor and power supply. Each of them have specific functions and you have to know each of them prior to buying your own system.
Digital Video Recorder (DVR) is considered as the heart of the CCTV system. Available in several kinds, it records, plays back and controls your cameras. Here are the common DVRs that you can pick from.
The Full D1 is a form of DVR with the highest resolution to provide among the many kinds that you can find. If you combine this with high specs CCTV cameras, you will definitely have the best CCTV system. It is commonly used for industrial purposes with tight security and settings where facial identification is vital. This one costs a lot higher than other types of DVRs, but the difference in picture with its counterparts is very minimal.
The Half D1 Half CIF is acceptable already for small businesses or for environment that is not so rigid. Nowadays, this is the most commonly used DVR as it is extremely affordable and offers high quality pictures. The name means that merely half of the number of installed cameras in the DVR can reach the maximum resolution while the other half can only manage to provide a lower resolution than the others. This is frequently chosen because of its less expensive price while still producing high quality images.
The CIF is an additional type of DVR but the disadvantage is that it produces the lowest quality among them all. This is already acceptable to some people, specifically to those who do not even notice the difference between several kinds. However, those who have background knowledge on CCTV systems or those who have very clear eyesight will surely not choose this kind. It does not produce high quality pictures, knowing the price, so it is the most rarely used. In addition, it is the oldest model also of all the available DVRs in the market today.
Because of the availability of modern types of DVRs, recordings and play backs can already be extended to months instead of just days. The equipment can be connected also to the internet for easy access to your CCTV cameras even in far-flung places or from another location using your computer or mobile phones. Such convenient features can help people in running their business properly even though they are not actually in the premises. The more sophisticated systems even consist of motion detection, power loss alarm, video loss alarm, manual and scheduled recording, and other options for additional protection and security.
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