Eventually, you may choose to expand your system and add more elements. 6. Most home security companies use standard
components that are compatible with all major providers in the market, while some offer proprietary equipment. In order to have the flexibility
and versatility to buy from different suppliers and the option to expand your system, stay away from companies that only sell proprietary equipment. 7. Consider setting up a separate computer to store your CCTV video feeds. Although a common DIY home security system records video only when there is movement in the camera’s field of view, that footage needs to be stored in a computer that is kept on at all times. For better reliability, it’s good to have a standalone computer that is dedicated to this purpose. 8. Many DIY security system companies offer free technical support and installation instructions over the phone or online. There are also some that give technical trainings for a price.