Clipping of news on Brazilian Culture, Law and Citizenship
07/18/2016
This article was translated by an automatic translation system, and was therefore not reviewed by people.
transparent image
Tips for choosing security cameras
Source: R7
The security cameras are becoming increasingly necessary. Thinking about the protection of home and family, many people are installing this equipment in the property facade and also monitoring the rooms of increased movement of people. Check out some tips to hit the purchase of your security camera:
Search on technology is the first step
There are many security cameras on the market today. Some analog and other digital. Some reproduce images in Full HD and other HD. With so many options, a person who does not have much issue with affinity can be confused easily.
Analog signal
These types of security camera usually more economical, but also provide images in Full HD (1080p) or HD (720p), depending on the model. Before buying, it is best to read well the technical specifications. Another advantage is that the coaxial cable of conventional cameras may be used. It is ideal for those looking for better cost / benefit.
? AHD
? HD-TVI
? HD-CVI
Digital signal
This type of security camera is usually more expensive. The HD SDI models offer excellent resolution (1080p) as the IP are wireless, but have varying amounts of pixels.
Besides the high cost, another disadvantage is that these technologies have delay, that is, it takes a few seconds to generate the image on the screen.
? IP
? HD SDI
5 questions you need to take into account to choose security cameras
Resolution
Sharp images are essential for a good monitoring. When buying a security camera, you need to pay attention to details to ensure a good resolution. The ideal is to analyze the number of pixels and lines. In practice, an analog machine must reach up to 800 lines. More than that, only if it is HD.
Lens size
What is your goal when buying a security camera? If the idea is to monitor, for example, what happens in your living room while you are not, it is best to opt for a smaller lens. So, you see the whole room.
To monitor the outside of your home, a larger lens could be displayed. After all, you do not need to watch the entire street. Only the sidewalk in front of his residence.
There are various sizes of lens on the market. Some even allow varying angles.
infrared range
This information contained in the package of security camera can confuse a little. Nothing prevents the infrared range within 20 meters, for example, but the film be limited to 10 meters.
Prefer quality cameras
Do not be fooled by cheap models that promise to be the solution to all your problems. One must keep in mind that high-tech security cameras usually cost more.
Warranty
This is another important factor. Before buying, make sure the manufacturer has operations in Brazil. Otherwise, you will be helpless if the product has a problem.
Source: R7
To access the R7 website, click here.
Our news are taken in full of our partner sites. For this reason, we can not change their content even in cases of typographical errors.
This article was translated by an automatic translation system, and was therefore not reviewed by people.