This makes sense of knowing the different security cameras according to the intended requirements and implementation. Choosing the Right Security CamerasIf you are thinking of buying security camera, you should pay attention on the size of the CCD chips. Cameras using CMOS technology usually have poor light sensitivity and produces poor quality images. The larger the chip the better images it may produce but you should expect that it is more expensive. The picture resolution of the security camera image can be measured by the number of TV lines. The larger the number of lines, the better resolution and picture quality you can expect. If you will use the security camera in places with poor light conditions, then you should choose the B/W chip cameras that produce better light sensitivity and greater resolution. Security camera systems are categorized into different types. Types of Professional Grade Security CamerasThis type of security camera has box type body that can use different sizes and types of lenses. This enables monitoring objects in any distance. This is ideal for indoor use, but is also recommended for outdoor as long as it has weatherproof housing.