Hard Drive Capacity The hard drive capacity helps determine the amount of storage space available for security surveillance footage that each system.Hard Drive Capacity :
Resolution (TVL) TV lines are the standard measure for TV resolution. The higher the resolution the better the image quality.Resolution (TVL) :
Day & Night Feature Some systems offer the ability to monitor your secure area at night as well as during the day for 24 hours surveillance.Day & Night Feature :
Audio Channels The number of audio inputs and ouputs.Audio Channels :
Application These systems are built with specific cameras for indoor, outdoor, or both types of security video surveillance.Application :
Camera LUX A good camera with good low-light capability will have a lower lux rating.Camera LUX :
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