CCTV, closed-circuit television, is a great way of ensuring that any unwanted visitors are being recorded. You as a owner would generally not be able to take care of your property 24 hours a day and therefore, having CCTV camers installed and ready to record would be essential.
With easy to use systems, you, the owner of the property, would be able to check any recordings as well as a currrent live feed straight from the cameras. Besides, accessing these recordings can be done from many devices such as TVs or smartphones.
The video system will also be used in conjunction with a digital recorder, effectively giving the user a picture of anyone who approaches the door. For larger systems the panel at the front door can be connected to a telephone line and make use of users standard telephone.