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This is good for, say, tracking criminals who don't stay in one place, or for catching action that's outside the camera's range. Most bullet cameras are weatherproof and sealed without the ability to use different lenses. In some cases the use of cameras is inevitable. Therefore many customers shopping for complete CCTV monitoring and recording systems are confused by such a veriaty of available products. That means that if the location you're watching changes, you just pick up the camera, move it to the new location, plug it into an electrical socket if necessary, and go back to the monitor to watch. They can easily be relocated without having to rely on nearby power or communication sources. Wireless spy cameras send electronic signals through a transmitter. The number of TV lines in the security camera image is a measure of picture resolution (sharpness). This type of surveillance system is extremely efficient in monitoring large crowds in real-time. How Do Wireless Cameras Work?
It is OK to do it this way, for baby monitoring or residential application, when quality of the picture is not that important. Darker environments require 1/3" - 1" sizes.
Needless to say, this is extremely convenient, since you may not want to be so close to the place you're monitoring. The larger the number of TV lines, the better the resolution and hence, overall picture quality. CCTV specs Add to that the risk of tampering or damage to the cables, and you have a strong case for wireless. You simply want to check if they are in the habit of borrowing money from your sock drawer. TVL stands for TV Lines, and the higher the value, the better the quality. For example, why use cameras with 500 TV lines of resolution with a monitor that offers only 380 or less. The most popular examples of covert board cameras are smoke detector and motion detector cameras. For a common size household, the most suitable system is a quad cam. Bullet cameras usually come with 3.6mm lenses witch are considered to be suitable for most standard installations (good for covering small to medium size rooms or equivalent).
Something to note, if you have a laptop rental and plan to use wireless accessories be sure to ask if the equipment is wireless capable. A great advantage of bullet cameras is their small size and integrated design.