A closed-circuit television camera (CCTV camera) can produce images or recordings for surveillance or other private purposes. Cameras can be either video cameras, or digital stills cameras. Walter Bruch was the inventor of the CCTV camera.
Video cameras are either analogue or digital, which means that they work on the basis of sending analogue or digital signals to a storage device
CCTV systems are designed to be easy to install and come with everything that you need for a complete CCTV system. Each system has many optional upgrades. All CCTV systems include security cameras, a DVR, power supply box, and all cables and connectors for a complete installation.
A digital video recorder (DVR) is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device.
A network video recorder (NVR) is a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device. An NVR contains no dedicated video capture hardware. However, the software is typically run on a dedicated device, usually with an embedded operating system. Alternatively, to help support increased functionality and serviceability, standard operating systems are used with standard processors and video management software. An NVR is typically deployed in an IP video surveillance system.
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electric power along with data on twisted pair Ethernet cabling. This allows a single cable to provide both data connection and electric power to devices such as wireless access points, IP cameras, and VoIP phones.
Take a look at our CCTV accessory items! We have lens, housings, brackets, video baluns, power supplies and many more security camera accessories.