Closed-circuit television (CCTV) is sometimes simply called video surveillance. CCTV refers to a system of video feeds that are transmitted within a closed system from various security cameras. CCTV is distinct from broadcast television, in that signals are not sent out for just anyone to intercept. Rather, video streams are available only to authorized users. In practical terms, any home security camera surveillance system is technically a CCTV system. Only you, the user, and your authorized agents, are able to access and review feeds from the cameras in the system.
A more open question is whether most CCTV is cost-effective. While low-quality domestic kits are cheap the professional installation and maintenance of high definition CCTV is expensive.[35] Gill and Spriggs did a Cost-effectiveness analysis (CEA) of CCTV in crime prevention that showed little monetary saving with the installation of CCTV as most of the crimes prevented resulted in little monetary loss.[36] Critics however noted that benefits of non-monetary value cannot be captured in a traditional Cost Effectiveness Analysis and were omitted from their study.[36] A 2008 Report by UK Police Chiefs concluded that only 3% of crimes were solved by CCTV.[37] In London, a Metropolitan Police report showed that in 2008 only one crime was solved per 1000 cameras.[38] In some cases CCTV cameras have become a target of attacks themselves.[39]
CCTV Camera Pros is a direct supplier of security cameras (analog CCTV, 720p and 1080p HD CCTV, and network IP), video surveillance systems, and CCTV equipment (Closed Circuit Television). We supply video surveillance systems for home, business and government. We sell to end users, resellers, and installers. We started our company in 2006 specializing in CCTV camera systems. As technology advanced, we expanded our product offering to network IP cameras and HD security camera systems that use AHD cameras (analog high definition), HD-SDI, and TVI cameras. We also carry hundreds of video surveillance accessories such as DVRs, cables, connectors, tools, test monitors, and more.
There were an estimated 30 million surveillance cameras in the United States in 2011.[61] Video surveillance has been common in the United States since the 1990s; for example, one manufacturer reported net earnings of $120 million in 1995.[62] With lower cost and easier installation, sales of home security cameras increased in the early 21st century. Following the September 11 attacks, the use of video surveillance in public places became more common to deter future terrorist attacks.[23] Under the Homeland Security Grant Program, government grants are available for cities to install surveillance camera networks.[63][64][65] In 2009, there were an estimated 15,000 CCTV systems in Chicago, many linked to an integrated camera network.[66][67][68] New York City's Domain Awareness System has 6,000 video surveillance cameras linked together,[69] there are over 4,000 cameras on the subway system (although nearly half of them do not work),[70] and two-thirds of large apartment and commercial buildings use video surveillance cameras.[71][72] In the Washington D.C.-area, there are more than 30,000 surveillance cameras in schools,[73] and the Metro has nearly 6,000 cameras in use across the system.[74]
Your home is your castle, and needs to be defended—even if only from the threat of late-night visits from raccoons. Security cameras ensure that you know what’s happening on the home front at all times. HD resolution cameras, with color imaging, plus pan, tilt, and zoom features, will offer you the clearest view of your property from almost every angle. 
Because network cameras are embedded devices, and do not need to output an analogue signal, resolutions higher than closed-circuit television 'CCTV' analogue cameras are possible. A typical analogue CCTV camera has a PAL (768×576 pixels) or NTSC (720×480 pixels), whereas network cameras may have VGA (640×480 pixels), SVGA (800×600 pixels) or quad-VGA (1280×960 pixels, also referred to as "megapixel") resolutions.
I actually have two of these systems, and intentionally left them off my home network because I wanted to record an event and they performed flawlessly. I could see all 4 cameras on each system using the included monitor and the recordings were saved to the internal hard drive. Only after the event did I reposition the location of the cameras and then plugged the monitor/base station into my home router so that I could check in while away from home. All that was required was finding the IP address of my home router and then typing that into the setup prompts on the monitor/ base station.
This ANNKE CCTV system is one of the most popular on the market. A low price point and overwhelming positive reviews helped the ANNKE make our top five. The ANNKE’s video timeline shows where moments of motion occurred so you can easily skim back and see the video activity for the day, which is a big plus for this system. The ANNKE also has the same motion-detection zone feature as the Amcrest. However, you get what you pay for, and with a lower price point, this system won’t give you all the extra features some other CCTV systems have.
Most security cameras use Wi-Fi, but not all rely on it exclusively. Some add Bluetooth for local control and easier setup through your smartphone, while others incorporate separate home automation networking standards to interact with other devices, like Zigbee or Z-Wave. For most cameras, all you need to do is follow instructions on an app to connect them to your home network.
The Vimtag VT-361 HD home security camera is a smart investment for any homeowner. Along with the great range of motion and two-way audio highlighted in the chart, the VT-361 has a 3x digital zoom function. This kind of control is rare among stand-alone cameras. The VT-361 has 720p resolution, and while that’s not the highest available, it’s still considered high definition, so you should have no problems with image clarity. The best part about this indoor security camera is the price—it comes in at under $100. It also gets strong customer reviews on Amazon with an average rating of 4.1 stars from over 4,800 ratings.

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