Security Cameras
A2Z Security Cameras works hard to bring you the finest selection of CCTV Cameras and IP Cameras from the world's top brands. A2Z delivers a wide range of choices for all your analog or network video surveillance system needs. A2Z Security Cameras offers all the best security camera styles at competitive pricing. We also offer Expert Consultation and Superior Technical Support ensuring maximum satisfaction from our customers.
FEATURED CCTV CAMERAS:
FEATURED IP CAMERAS:
Megapixel HD Mini Dome IP Cameras
Megapixel HD Dome IP Security Cameras
Megapixel HD Vandal Dome IP Security Cameras
Megapixel HD IP PTZ Cameras
Megapixel HD IR Bullet IP Security Cameras
Megapixel HD Day Night IP Security Cameras
Megapixel HD IP Security Cameras
Megapixel 360 Fisheye 180 Panoramic IP Cameras
IP Network PTZ Security Cameras
IP Network Wireless Security Cameras
IP Network Color Security Cameras
IP Network Day Night Security Cameras
IP Network Dome Security Cameras
About CCTV Cameras (Analog), HD CCTV Cameras, Digital Video Recorders, Hybrid DVRs, XVRs, PC DVRs, DVR Cards:
The original CCTV or analog surveillance technology was developed over many years to a point of almost exceeding the standards, pushing the boundaries of analog video security to its maximum performance. However, CCTV Analog security cameras and the Analog CCTV format specifically was ultimately limited to resolutions more like 600TVL, 700TVL, 800tvl and the likes thus forever restricting them to resolutions below megapixel or HD ratings. The DVR or Digital Video Recorders therefore likewise commonly supported the highest of D1 (4CIF) video recording while standards eventually reached 960H, the traditional CCTV system remains limited to "high resolution", versus "high definition". Today after recent years of continuous development, the modern CCTV systems have become "HD CCTV" systems and while these systems genius is that they still use the original CCTV cabling, yet these new systems feature digitized transmission which can achieve video, audio, data and control all over the same coaxial cables as before. But arguably most importantly, the current HD CCTV systems with their now widely adopted formats (CVI, TVI and AHD) provide superb HD and even ultra-HD video including 2MP, 3MP, 4MP, 5MP and 8MP (4K) resolutions. This introduction of HD CCTV transmission allowed "CCTV" based systems to regain their popularity in the market both as an attractive solution for new systems and as a greatly needed solution for upgrading existing CCTV systems.
The CCTV system therefore remains one of the most developed system types in pro video surveillance. Today HD CCTV camera systems include a wide range of models including cameras to new types of video recording units and accessories that are widely deployed throughout the world. Furthermore, most modern DVR (Digital Video Recorder) units that are available bridge the gap between systems allowing older Analog CCTV, new HD CCTV Format(s) and IP cameras to populate a single Hybrid recorder, often abbreviated as an XVR. HD CCTV systems can include unique capabilities including recorder based advanced detection methods while also providing all the common demands of remote access including web browser interface, mobile apps and PC / MAC software.
About other (and older) types of CCTV recorders and formats, like DVR Cards, PC DVRs, HD-SDI Cameras and Digital Video Recorders:
The newest and now widely implemented HD CCTV systems in the market are exclusively using formats like TVI, CVI or AHD. Though some may encounter solutions like SDI or HD-SDI format which also use the BNC connector, coaxial cabling and the likes, this technology which was adopted from the broadcast industry in early attempts to bridge the gap between CCTV and modern Megapixel IP Cameras ultimately did not gain wide acceptance. Reasons like limitations on cabling, cost and other factors ultimately proved the solution was not the ideal replacement for most security camera system needs. In other forms, some previous generations of CCTV systems used PC based DVRs which included the use of DVR Capture cards, though these solutions gained high popularity for diverse capabilities and exceptional performance, such systems today though potentially still in use are no longer a mainstream solution and essentially all modern HD CCTV systems instead use purpose built, Linux based recording devices.
About IP Cameras, Network Video Recorders, VMS Software and PC NVRs:
IP Cameras and network-based video surveillance is modern rival to the CCTV or now HD CCTV systems. The numerous benefits that these devices have brought to the industry are almost immeasurable. Simplified single cable install with PoE, high definition, higher megapixel imaging to a variety of other on camera functions have boosted speedy development of modern IP Camera systems now for many years. With such systems the "DVR" has been replaced with more appropriately termed Network Video Recorders or NVRs. These solutions can include still both PC based NVRs (often the premium solutions including NVR / VMS software) but also Linux based devices similar to the pre-built DVR solutions with both types widely developed and deployed in small to large projects alike and likewise themselves in many shapes, sizes and specs. Thanks to the some undeniably superior advantages of the on-camera processing of an IP Camera, these systems can achieve totally contained solutions on a single camera (using on-board storage to cloud storage solutions) or allow flexible placement of cameras across a wide area such as campus, complex, town or city. Their network standard of communication also makes them ideal for WiFi and Wireless systems demands while their more advanced design compared to CCTV cameras can incorporate almost endless potential features including edge detection such as A.I. or video analytics to many other capabilities in all aspects.
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