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Closed Circuit Television (CCTV)

With Closed Circuit Television (CCTV), is the use of cameras that transmit the signal to specific or limited set of monitors and / or VCRs. The CCTV systems are used to monitor areas that need to be checked as airports, banks and military bases.


Cameras

The cameras for the CCTV systems are distinguished from the macroscopic to the cameras for shooting amateur brodcast or mainly for the purpose of the images, also for their adaptability to extreme shooting scene. Usually intended for the CCTV cameras prefer the extreme sensitivity to light and a high adaptability to situations and against different lighting. The cameras today are mainly distinguished by the sensor of recovery, which may be a CCD and CMOS, as well as its size varies from 1 / 4 ", 1 / 3" and 1 / 2 ". The size of the sensor is usually a feature important for the technical quality of the shooting scene.

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Addalock The Add-A-Lock is a portable door lock that can be easily installed and removed in seconds with no tools on any door that swings open inwards, giving you additional security and privacy behind it....

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