CCTV has developed rapidly over the last few years to where HD is now the expected norm and 4K is readily available. It ranges from the HD over coax option that can use existing cabling from an older system allowing an easy upgrade but also used on new installs , to the IP networkable systems that easily allow for integration and wirefree network expansion . Video analytics have become the accepted norm offering vehicle number plate recognition, perimeter detection, people counting, thermal sensing and facial recognition, etc and cameras are available in fixed and Pan/Tilt/Zoom (PTZ) variants across the ranges.

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