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So, you decided to buy a CCTV Security System for your home or office, but the questions like “How do security cameras work?” or “What model to choose?” make you feel like a freshman in college – knowing nothing and nobody to help you?
Here we will try to explain to you the basics of surveillance systems’ work to help you purchase the appropriate equipment.
There are so many types of security cameras with so many options that very often it can be a real problem to choose the model appropriate for your setting.
 First, let’s find out how security cameras work.
1) The main element of any CCTV camera is a charge coupled device (CCD). This is a sensor which converts the light form the lens into an electrical signal. Then the signal is processed into a video output. A finally, the video output can be both recorded and displayed on the monitor. The process of video signal creation and transmission depends on whether the CCTV security camera is digital or analog. 2) We have already mentioned the pros and cons of digital and analog cameras. To cut it short, all cameras used to be analog in the past, and digital cameras represent the new stage of surveillance cctv cameras development. They provide higher image/video quality as compared to analog models. The video is generated by utilizing tiny microchips (the digital signal processing). Analog cameras utilize integrated circuits to process the video output. More and more people prefer digital cameras not only because of the higher quality, but also because of the advanced options of video storage and playback. 3) What is better – color or black and white camera? Of course, you might have thought that color security cameras are better. They are indeed. It is much easier to distinguish images (people, cars, and other objects) that appear in color, BUT, color cameras are unsuitable for nighttime/low light surveillance. We, at WireTechGadgets.com offer to use the latest models of cameras which automatically switch from color to black and white mode depending on the light conditions. Moreover, such cameras can be equipped with infrared cameras/illuminators for night use too. 4) And the last but not the least is the resolution. This parameter is measured in CCTV system rangehorizontal TV lines. Usually the resolution is 350-400 lines. 500 lines provide high resolution. The higher the resolution the more detailed image you will get. But when buying a CCTV system make sure all the components support the highest resolution you are going to achieve. For instance, if the camera can provide 500 lines resolution, while the monitor can only display 400, your efforts to achieve a high resolution image will be futile. www.top-shoppingmall.com strongly recommends a wonderful home security cameras,security alarm system,baby monitors,iPad Accessories,digital cameras and more products.which will be your perfect assistant to take care of your home or business. Blogroll: Top-shoppingmall Show You Electric Eyes: Grow House CCTV Home Security Store – Wireless Security Systems Review
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