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Infrared Security Cameras - Make An Informed Choice
Infrared light is visible as red or violet, which is translated by electromagnetic waves. Some waves are very short, and others are longer, similar to microwaves. When it comes to surveillance, there is no better way to do this than by using infrared security cameras.
To be able to see what's happening in your area at night is a massive advantage. But what is infrared you might ask? Well it's a beam of light which can be seen as red or violet, caused by electromagnetic waves. These waves transmit into images which can then be captured.
Infrared radiation can be incorporated and seen with particular equipment, which will allow us to view objects either totally in the dark or at regular conditions.
Another point to help us understand IR cameras, is the illuminators are only on when light levels fall to a predetermined level. Also the light projected is not visible like a floodlight or flashlight, it is only visible to the cameras B/W sensor. However when viewed on a monitor even in a completely darkened room you will see a B/W image of everything that is there within the cameras range.
A really good camera must be able to see everything in it's range, especially at night when there is little ambient light available. Some less expensive cameras with infrared will be bright in the center of the picture but the periphery or outer boundaries will be dark. A good camera should be able to provide infrared lighting to match the angle of the lens.
Another thing to look at when considering an IR camera, is its ability to view everything in its range. This is true especially for night surveillance or when an area is completely in the dark. Some inexpensive cameras with infrared LEDs light up the center of the picture but the outer edges will be dark. A good camera will have infrared lighting to match the angle of the lens.
Many regular surveillance cameras if they are capable of B/W images are transformed into infrared cameras as well, with the use of illuminators installed separately. Your camera when attached to a DVR can then detect motion in complete darkness, with the use of its infrared radiation, which is undetectable with the naked eye. Remember that while the normal day and night camera does records in low light, it is impossible to record in zero light as it does not utilize infrared technology.
IR cameras come in a variety of sizes and types. The sizes can range from a small bullet cameras to larger bullet cameras which are the size of coffee cans. IR cameras can also be found in large block sizes that allow for a larger number of IR emitters.
If you are considering a CCTV system, then look into a infrared system that can work in tandem with its counterpart. This will provide you with maximum coverage especially at night.
Some years back it was cumbersome to have these cameras installed because of their bulkiness. Today they are lightweight, easy to install and much more durable than a few years back.
Make sure you source from a reputable dealer who can explain the whole process to you thoroughly. Let them show you different recordings from various types of infrared security cameras. Buying online can be a great source for these cameras but you generally only have pictures to go by. Most reputable dealers will have a phone number to contact them. They should be familiar with the cameras and be able to help you decide. Also be sure they have a return policy and guarantee.
About the Author Author: Mike Ward is the owner of Protection Depot, a leading distributor of infrared security cameras and digital video recorders. For more information about infrared security cameras, please visit Protection Depot.
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