Closed-circuit television (CCTV) system recording capabilities, quality, and necessary components should all be carefully considered before buying. The two main possibilities are network video recorders (NVRs) and digital video recorders (DVRs), with budget, wireless signal dependability, cables, and camera coverage among other important considerations.

NVRs have more recent features that are especially helpful to Do-It-Yourselfers (DIYers), like improved image quality, increased flexibility, interoperability with IP cameras, and wireless communication. Power over Ethernet (PoE), which uses twisted pair cabling to transmit data and power, and a wireless router to connect IP cameras for network video recorders allows for additional placement freedo