How to Protect Yourself form Attacker

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Hi friends, have you already equipped yourself with a stun gun hand held personal defense? This gadget uses a high voltage electricity to shock and disable the attacker. The attacker can have pain and disorders of the central nervous system because of the high voltage electricity. The attacker will temporarily paralyze, and this is the time for us to escape or get some help.

Now, stun gun is equipped with a voltage higher than the older and is designed to provide a more assertive treatment. For more information about this stun gun product with it advances, please follow the link above.

The Installation for Camera System

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Security Monitor.
Video from Security recorder could be displayed on regular TV monitor. It is OK to do it this way, for baby monitoring or residential application, when the image quality is not so important. However for professional installation, security monitors as much important as cameras. They offer extended life of picture tube (necessary with static images, which can lead to fatigue the figure) and much grater resolution.

Wires and cables.
Finally the camera installation will require proper wiring. Good quality cable will prevent video degradation over long distance runs. It is recommended to use RG59 or RG6 coaxial cables as it is fully shielded and will prevent video loss up to 400 ft. Coaxial cables will require BNC connectors and proper installation possibly done by experienced technicians. In the short run plug and play non-coaxial cables with factory installed BNC connectors may be used (up to 150 ft). Plug and play cable is easy to install by not experienced users. Cables for CCTV cameras consist of two cables bundled in one jacket, one cable for video and one for power delivery.

Every CCTV system is as good and reliable as its weakest component. With the mind, investing on highest quality and performance cameras, while purchasing low performance recorder, from economical and practical point of view makes no sense.

For example, why use a CCTV camera with 500 TV lines of resolution with monitor that offers only 380 or less. All the benefits of high-resolution camera are affectively sacrificed by limited capability of the monitor. Asking questions is important before purchasing video security system, and the vendor you may be able to provide more details and recommend equipment for specific needs and requirements.

Types of CCTV Recorders

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CCTV recorderAlthough some customers still prefer the old-fashioned recording solution, it is worth to invest the extra money to buy a good quality digital video recorder (DVR). Digital recorder transfers analog video cameras feed into a digital format, and store them on your hard drive. There are two main types of digital recorders on the market today.

PC Based Systems.
A special board and software installed on your computer will allow camera inputs and store video on hard drive. Many people are under the misconception that personal computer with additional hardware installed, will do the job. This explains the hundreds of companies that have hung up a sign, taken a few ads and start working in basements and garages, holding themselves out to be DVR manufacturers and security specialists. The main problem with this type of CCTV recorders lies in the main components of the … Yes, it is a computer, designed to perform limited tasks, but also none. The truth is that any computer-based digital video recorder, and will always be vulnerable to software crashes, hang-ups, system instability, virus related problems etc..

Stand Alone System.
Very similar in appearance and control functions to standard VCR recorders, are the truly extraordinary. Most video processing is done by hardware, therefore eliminating system crashes; video is also stored on the hard drive in digital format. Basic operating system, usually Linux, is permanently stored on special processor, witch is impossible to overwrite or corrupt. Designed and manufactured with single application in mind, it is much better in performance and reliability to its PC based rival.
Some DVR systems will even have remote monitoring capability, useful when monitoring is required in different locations via the Internet or network. The most important futures to look for when choosing the right DVR recorder are motion detection and frame speed. The higher the frame speeds up the video more smoothly. Motion detection will allow recording video from each camera only when motion is detected, this is great for extending video recording time.

Different Types of CCTV Camera

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CCTV CameraCCTV cameras are usually divided into different types based on the camera body used.

Professional-grade camera.
Has a box type body with the ability to use different types and sizes of lenses. Swap lenses enable this camera, to monitor objects from virtually distance. Although for indoor use, they can be used for outdoor when combined with weatherproof housing. They are considered as the most versatile and widely used by professionals for commercial installations.

Bullet camera.
Bullet camera is, as the name suggests contained inside bullet shaped housing. Most bullet cameras weatherproof and sealed without the ability to use a different lens. The great advantage of bullet camera is the small size and integrated design, some bullet cameras will even have infrared LED future built-in. Infrared technology is only the LED light in the infrared spectrum (not visible to the human eye). This light will illuminate viewing area, making possible monitoring in complete darkness. This is a great future, but it only works up to a certain distance (usually between 10 and 50 ft. depending on model) Vary simple to install and esthetically designed, bullet cameras are great choice for residential and do-it-yourself installations where monitoring objects are within about 25ft from the camera location (with standard 3.6mm lens).

Camera council.
Board Cameras are basically fixed lens mounted on a circuit board. These cameras can be packed in small case (Mini Cameras) or dome (Mini Dome) or simply sold unpackaged, for mounting by the buyer. Lenses in this are one of the normal industry aperture or “pinhole” lens of very small aperture. Pinhole lens cameras are often called “spy” cameras and can be fitted with a hidden way for covert surveillance purposes. The most popular example of a board is the secret of a smoke detector and motion detector camera. Because the camera lens on the pre-mounted boards, have fixed iris and are usually of short focal length (ie wide angle), their usefulness is limited flexibility. However, this type of camera can provide a low cost solution in the right situation, particularly in the home environment.