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Utah Best Home Alarm Systems - Why Choose Infrared Surveillance Cameras
Infrared security cameras are excellent home assets which effectively help protect and keep an eye on the interior and/or exterior of a home. They give homeowners the ability to safeguard and record the goings on around their homes at night, where other types of security cameras are not nearly as effective at doing so.
How Infrared Technology Works
Utah alarm system specialists state that infrared security surveillance cameras use infrared light to capture images in the night when there is low or no lighting. This method of security camera surveillance becoming extremely popular in suburban areas where homes are more secluded from one another, with a greater distance between houses.
A feature known as an infrared illuminator is the primary source of light which amplifies images seen by the camera. Utah home alarm system officials believe this technology is important because it allows homeowners to capture clearer images of anyone who intrudes on their property.
How Infrared Cameras Enhance Security
Infrared cameras provide numerous benefits to homeowners. First off, infrared security cameras come equipped with a built in light supply in the form of LEDs. This means that no other type of lighting is required and that they can be installed anywhere without the homeowner having to think about getting a light source. With regular surveillance cameras, Utah home alarm system experts state that homeowners have to worry about investing and installing lights around the home.
In addition to this, infrared security cameras are also waterproof, so you can hide them anywhere outdoors without worry. Even if you keep them in an area where they may get wet either from the rain or from something like sprinklers, you don't have to worry that the camera will be ruined.
Along with this, because of the IR illuminators the rays can be penetrated through any obstacles such as smoke and haze. This is tremendously effective and useful technology. Utah alarm systems experts point out that this is extremely beneficial for homeowners in coastal areas.
There are numerous infrared surveillance cameras available, so homeonwers must choose carefully. Not all cameras offer the same quality or features, so homeowners should consider their needs and do a little research before making a purchase.
About the Author
When it comes to choosing the best home alarm system Utah security specialists suggest consulting with a local security company. Security authorities state that some of the top Utah best home alarm system technologies are surveillance cameras because they deter crime and provide evidence if a crime occurs.
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Security Cameras that see in the dark
Humans have several great attributes, but seeing in the dark is not one of them. Human vision is limited to a small portion of the electromagnetic spectrum called visible light. It is possible for humans to see beyond this range by making use of equipment which allows us to capture non-visible sources of electromagnetic radiation known as infrared light.
Many CCTV cameras now have the ability to project infrared light using an array of LED illuminators. When this capability is combined with CCD sensors capable of recording the infrared light, you achieve what is reffered to as night vision.
CCTV security cameras with night vision capabilities allow you to see in total darkness. Many night vision cameras are capable of producing detailed video regardless of lighting conditions. When required, night vision security cameras automatically switch to infrared mode without the need of human intervention.
There are four important things to keep in mind when dealing with night vision security cameras. Distance, resolution, light pollution and sensor type.
Many cameras tout their ability to project infrared light at great distances. Before spending resources on a camera that boast such feats, keep in mind that even if a camera can illuminate an object that is far away, chances are you are not going to be able to make out what that object is (unless you are using a camera with a zoom function). It is better to spend your money on a higher resolution camera with a lower infrared capability.
A vehicle will need to be within 50 feet of a night vision camera in order to properly identify the make and model (forget about color with an infrared security camera, the car will always be a shade of green). A person will need to be within 20 feet of the security camera to make a proper ID.
Most security cameras with IR illumination will have a reach of at least 25 feet - therefore the focus should be on increasing the image detail (or resolution) in order to have a better chance of identifying the subject. Remember that the resolution of the camera must be matched by a recording device that has the capability of recording it. If your camera has 480 lines of resolution, and your Digital Video Recorder can only record 320 lines of resolution, you are loosing the benefit of the higher resolution.
The other issue is light pollution. Many outdoor areas are lit at night. Sometimes by pretty strong light sources. Be very careful not to place your night vision security camera near such light sources, as it will interfere with the sensors and could produce unwanted artifacts in the recorded video.
If you plan to use your night vision security camera in an unlit area, keep in mind that the infrared illuminators do produce a faint reddish glow which can be easily detected at short distances. They may not be the best solution for covert surveillance.
Night vision is a necessary feature for any outdoor CCTV application. When choosing your camera, make sure that it features built in infrared illuminators and a CCD sensor. Cameras equipped with CMOS sensors do not perform as well in the dark, therefore I would recommend that you steer clear of them for outdoor applications. Also look for a camera with an IP55 designation which indicates that the camera is well suited to be used in humid and dusty conditions.
About the Author
Andy J Thompson is a residential CCTV camera specialist. For additional tips and informaiton you can read his blog at http://www.securitycameratutor.com/
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