As for CCTV, it sounds like something from the past. I mean, there are more modern variants to provide home security. You can take a look at the catalog of the Ajax company. They produce professional security systems for homes and offices. When I was choosing a system to install in my house, I did not expect it to be so smart. I like the way of control. A mobile application allows me to check all the devices and even see who is coming through a camera built is a motion detector. Such a system works much more reliable than just several security cameras.