18/2 cable consists of two cables: 2 conductors 18 gauge electrical cable in a PVC jacketed cable. This type cable is great for use with CCTV equipments. The wires offers the superior quality signal that you need to connect either your camera or alarm system in one cable. This cable is easy to run and it will look more esthetic when the installation is complete. It will also save you a considerable amount of time during installation.