Essential Information You Have to Know Prior to Buying CCTV Cameras
CCTV or Closed Circuit Television cameras are important tools installed in a certain 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 play specific functions and you need to know each of them before buying your own system.
Digital Video Recorder (DVR) is regarded as the heart of the CCTV system. Available in different types, it records, plays back and controls your cameras. Here are the common DVRs that you can select from.
The Full D1 is a kind of DVR with the highest resolution to offer among the many types that you can find. Once you combine this with high specs CCTV cameras, you will certainly 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 way higher than other types of DVRs, but the difference in picture with its counterparts is extremely minimal.
The Half D1 Half CIF is already good enough for small businesses or for environment that is not so tight. These days, this is the most commonly used DVR because it is extremely affordable and offers high quality pictures. The name indicates that just 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 usually preferred because of its cheaper price while still producing high quality images.
The CIF is one more type of DVR but the problem is that it produces the lowest quality among them all. This is already acceptable to some people, especially to those who do not even notice the difference between several types. However, those who have background knowledge on CCTV systems or those who have very clear eyesight will certainly not prefer this kind. It does not generate high quality pictures, considering 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.
Due to the availability of modern types of DVRs, recordings and play backs can already be extended to months instead of only days. The equipment can be connected to the internet as well for easy access to your CCTV cameras even in distant 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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