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 include several parts used simultaneously for proper monitoring and detection, such as 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 seen 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 choose from.
The Full D1 is a type of DVR with the highest resolution to deliver among the many forms that you can find. Once you combine this with high specs CCTV cameras, you will certainly have the best CCTV system. It is frequently used for industrial purposes with strict 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 already acceptable for small businesses or for environment that is not so strict. These days, this is the most commonly used DVR because 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 often selected because of its less expensive price while still generating 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 definitely not pick 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 appropriately running their business though they are not actually in the premises. The more sophisticated systems even include motion detection, power loss alarm, video loss alarm, manual and scheduled recording, and other options for added protection and security.
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