The camera will fulfil its role under a condition that it will be adapted to the conditions in which it will work at. It is very important whether the recording of the image "seen" by the camera will take place during the day, at night or in both situations. That's why you should choose not only the right camera but also the lens, casing, the way it is powered and the signal transmission.
Typical cameras are available on a standard definition of 480-600 line, which fulfils its role well in observation systems. The use of cameras with increased separation - 650 and 700 lines respectively allows better reading of registered details. Such cameras with increased parameters, equipped with a great quality lens and casing with heaters equipped with a thermostat will certainly not disappoint the expectations and ensure a good image in all conditions.
A crucial parameter of the camera is the size of the transducer of the CCD. In the camera, it has an effect on the viewing angle. Using a lens with a larger format, than the camera's transducer format, it reduces the viewing angle. This combination, therefore, gives increased separation as well as image quality, because it only uses the centre of the lens, where the optical elements are ground with greater precision.
Due to the nature of the observed object, children and teenagers should be taken into account as cameras be exposed to accidental or intentional damage. To limit the direct access to the camera, installation should be used in the upper parts of rooms, use additional casing, that will prevent for e.g. changing the position of the lens focus ring. Stable handles - which will not be sensitive even to hits, e.g. with a ball. In the case of ceiling dome cameras, it is worth using vandal resistant polycarbonate cases.
When using monitoring on, for example, playgrounds and car parks, marketplaces, it should be taken into account that the camera operates in variable conditions (rainfall, frost). Therefore, outdoors, we recommend using the outdoor cases with heaters and thermostats for the cameras. The CCTV system consists of a number of electronic devices. To create the simplest system, we will need image recording devices, industrial cameras (lenses), power supplies, devices for image preview.