Closed Circuit Television (CCTV) dates back to the 1970s when it was used for the security and surveillance of exclusively high-risk areas. This device is known as a ‘closed’ circuit television because unlike any other television design, the images captured by a CCTV are exclusive to a monitor connected by a coaxial cable or a wireless link. The images and/or sounds captured by the CCTV, which is usually placed at a high point so to cover a large area in its footage, records the images and stores it in its system.
General Types of CCTV
Although the varieties of CCTV systems are increasing day by day with the rapid progress in technology, these are the top four CCTV systems that amongst the most frequently used by the public as listed below.
Dome CCTV Camera
Owing its name to its shape, these types of cameras are generally used indoors where they are clearly visible to all. The obvious visibility of the camera makes it easily spot-able, and hence makes all possible criminals aware of the ominous eye on them- helping to deter possible crimes
Bullet CCTV Camera
These cameras are long, cylindrical, and tapered in shape- helping it to capture long distance images. It may be used outdoors, but is more commonly used indoors. A typical bullet CCTV camera is installed inside a protective casing that protects it from water, sunlight, dust, as well as other harmful elements.
Day/Night CCTV Camera
The Day/Night CCTV Camera is built to operate normally even in extremely low-light- making it perfect for users who wish to record footage during the dark, direct sunlight, reflections, and strong light all day long.
Wireless CCTV Camera
These cameras transmit images over the internet rather than a conventional wire, being easier to install because they do not require the use of a separate cable or power boost to send images over a large area.
General benefits of CCTV Security Systems
One of the foremost benefits of installing a CCTV system is peace of mind. With a functional CCTV camera looking over you, people are bound to feel secure in their surroundings in case of any unforeseen circumstances such as a robbery. The image of the criminal is easily recorded which can then be used by the authorities to track down the criminal. In addition to that, CCTV systems have also been known to significantly lower criminal activities due to the fear of being caught when they know that they are being watched by a camera.
A common misconception is that a higher resolution would produce a clearer image- in fact, if the resolution does not work with the lens in the camera, no matter how powerful the resolution, the image produced would not be clear. Make sure to match the compatibility of your sensor with the lens.