- Type of Camera
First, you can see our article “What To Look For in a Digital Camera” here. Because you need to choose which camera we are going to use, that depends on how much budget we are going to use and for what propose.
Wired: a standard colored security camera wired. Most wired security cameras today is internal / external and has an IR filter (infrared) for night vision (night vision image will be in black and white for improved contrast and image detail). The wired cameras are available in DIN or BNC terminals (connection ports and require video extension cables.
Wireless: More and more people are turning to wireless cameras in an economical way to build a comprehensive security system in their homes or businesses. The latest digital wireless cameras are safe, domestic appliances nterference-free and offer a picture quality and incredible audio.
IP / network: IP cameras (Internet protocol), or network are another option. These cameras connect to the router from your computer, such as a computer or other device enabled for the network. IP cameras allow you to access the remote locations of cameras over the Internet. Many of them also give the option of recording video directly to your computer, or to a network video recorder.
- Image Quality
The CCT security cameras produce images using CMOS or CCD chip (Charge Couple Device). Small and / or very inexpensive cameras generally use CMOS technology, produce a video of low quality and have a very poor sensitivity to light. CCTV cameras with higher quality use CCD technology . The CCD chip size is typically 1/4 ” , 1/3″ or 1/2 “.As a general rule, the larger the size, the higher the quality of the image produced and the higher the price. However , CCD chips of higher density as 1/4 ” and 1/3 ” now produce a good image like many other ancient chips 1/3 ” or 1/2″.
- Black and White or Color
If you are going to use the camera in an environment where light conditions are very low, it is recommended to buy a black and white camera system.The color should only be considered for internal use with good lighting conditions. For household cameras, color cameras are suitable for indoor and outdoor applications. Many high resolution color cameras now use an IR filter to a built-in night vision function.
Light is one of the most important specifications. Light levels are measured in Lux. The lower the number, the less light will need to play a clear picture .
The higher the resolution number, the sharper the image will be. The initial resolution of the camera is 330 lines, while high-resolution cameras produce a better image than 400 lines.
This may be obvious, but its important to choose a monitor which will be compatible with resolution of his CCTV cameras system .
Camera system recorders : DVR ( digital video recorder) that records in hard drives is the best option. We already talked about DVR here, so if you need some tips you can read this article.
- Where will the cameras be placed?
That depends which camera you pick and which areas you need to view, also if you need to see day and night. But our tip for outside is to set your cameras close to the roof and the wall, because:
- Its important to place your cameras where they can be protect from rain, snow and sun.
- Set your cameras near the ceiling provides good view and minimizes the risk of vandalism.
- Its easier to pass wiring (electric and video) because many homes have a space or a hole between the walls and the ceiling.