Motion Detector Camera Built In Dvr

Although the application of CCTV security have not changed much in recent years, the tools and equipment have significantly. Cameras became smaller, cheaper and better quality, but the major breakthrough happened in the device.

Therefore many customers shopping for complete CCTV monitoring and recording systems are confused by such a truth of products available. Objective of this article is to guide buyers toward best possible and most economical type of CCTV equipment, based on the intended application and requirements.

Selecting the right cameras.It is almost impossible to describe all types of those available in this short article. We will focus our attention on the most popular and widely used camera types instead.

CCTV produce images using CMOS or CCD (charge coupled device) chips. Tiny, very low price CCTV cameras usually use CMOS technology, produce poor quality images and have a very poor light sensitivity. Decent quality cameras use CCD technology. The size of CCD is typically 1 / 4 ", 1 / 3" or 1 / 2 ". In general, the larger, the higher the image quality produced and the price. However, higher density 1 / 4 "and 1 / 3" CCD chips can now produce both an image that many 1 / 3 "or 1 / 2" chips.

The number of TV lines in the image of security camera is a measure of image resolution (Sharp). As the number of TV lines, the better the resolution and thus the overall image quality. Standard resolution camera may have 350-380 lines, over 400 TV lines is generally considered good resolution while over 500 TV lines is considered high resolution. B / W chip cameras produce greater resolution and sensitivity to light, thus usable in dark areas where light conditions are poor most of the time.

On the other hand color cameras offer more realistic and natural picture. CCTV cameras

Professional grade cameras.

Have box type body with the possibility of using different types and sizes of lenses. Exchangeable lenses enable this camera to track objects from virtually any distance. Although for indoor use, they can be used for outdoor when combined with weatherproof housing. They are considered the most flexible and widely used by professionals for commercial installations.

Bullet cameras.

Bullet cameras are, as its name implies contained within the housing shaped ball.

Most units are waterproof and sealed ball without the possibility of using different objectives. great advantage of the camera of the ball is the small size and integrated design, some bullet cameras will even have infrared LED integrated in the future. Simply LED in the infrared spectrum (not visible to the human eye). This light illuminates your viewing area, which makes it possible to track in complete darkness. It's great future, but it only works up to certain distance (usually between 10 and 50 feet depending on model) Vary simple to install and estheticly designed, bullet cameras are excellent choices for residential installations and do-it- yourself where monitoring objects are within about 25ft from the camera location (with standard 3.6 mm lens).

Onboard camera.

Board Cameras are basically.