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HOW TO BUY A CCTV SECURITY CAMERA SYSTEM
CCTV stands for Closed Circuit Television, and is a system of certain security cameras all linked to one monitoring system. CCTV.
Because they are now much more affordable, CCTV cameras are now gaining in popularity with home owners to secure their home, home businesses and other personal properties.
How to buy a CCTV security camera system then？Here are some steps that you could follow:
Step One: Evaluate your needs.
Do you want to monitor general comings and goings? Do you want to see faces, merchandise, crowds? Do you need wireless or wired CCTV security cameras? Do you need an indoor or outdoor CCTV camera system? Do you need a 1, 2, 8 or 16 camera system? What is your budget?
Step Two: Select the type of camera.
There are two types of CCTV cameras, CMOS and CCD which are the image sensor. CMOS based cameras are cheaper but do not produce as clear and sharp image as CCD cameras.
Step Three: Select black and white or color.
If you are going to use the cameras in an environment where the light conditions are very low, it is recommended to buy a black and white CCTV camera system. Color should only be considered for inside use with good lighting conditions.
Step Four：Understand light level.
You must know one of the most important specifications-light levels. They are measured in Lux. The lower the number, the less light it will take to reproduce a clear image.
Step Five: Understand resolution.
The higher the resolution number, the sharper the image will be. Entry level camera resolution is 330 lines, good resolution cameras produce better than 400 lines, while high resolution cameras are at least 520 lines or above.
Step Six: Select a monitor that will match the resolution of your CCTV camera system.
Step Seven: Select CCTV cameras system recorders.
DVR (digital video recorder) which record onto hard drives is the best option.
If you still feel confused about how to put together a CCTV system to fit your needs then contact professionals such as the people at http://www.samalumi.com for help in putting together a system suitable to your applications.
2010-04-15 11:16 |
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