There are a lot of process to make us protect from the the others. Sometimes we fear from the anomies, sometimes we fear from the thieves and so on. For this some of the Jaminders and high rich of the persons used to hire manual security guards for their security. But the system is not full proof, they cannot stand still for round the clock and for this the science has come to us with the boon.
They have made a new system that is called CCTV cameras. This is a kind of system that is assembled with some simple systems. A security camera has been set with a DVR and it will be connected to a TV display. The camera takes all the events that are happening in front of it.
The DVR is making all the signals to a readable format and that will be sent to the TV display. Thus, all the items will be viewed to the TV display. The DVR can take a copy of all that happens for the proof of the happenings. This is the total system of CCTV cameras. There are two kinds of CCTV cameras, one is wireless CCTV cameras and the other is wired CCTV cameras.
The working process of of the both CCTV cameras is the same but the difference is that. Wireless CCTV cameras do not use any cord and the wired CCTV uses cords for its connection to the DVR. In case of the wireless CCTV cameras, we see the DVR also will be compatible for the CCTV cameras that will be wireless or wired. The wireless CCTV is not only used for the threat of stealing or protecting a place, it is helpful to view all the events and activities of the workmen of an industry of an office.
So, without visiting the place you will be able to see that is happing in front of the cameras. This type of cameras is hugely used in those places where twenty four hours of camera surveillance is needed. You may see the use of the cameras in the residential purposes also. For the family protection, you will be able to see the persons who are willing to enter the house and then you will be able to open the gate or door.
The cost of wireless CCTV cameras depends on the lens made of it, the facilities that you want and the company of the product etc. You may find it in the particular websites also.