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Hard Disk Recorders (Digital Recorders) as the names suggests simply store the images on a "Hard Disk" like a computer. Two basic types exist, the first that add on to an existing CCTV system on the end of a Mulitplexer in place of the VCR. The second type and the ones normally installed are those that have a built in mulitiplexer that allow multiple cameras to record on to a single unit. The advantages of Digital Recorders include: Better Quality Images Longer Record Times Pre Alarm Activation - Units can be set to record even higher quality images following an Alarm Activation, with Event Recording this can include before the Alarm activation happens Record & Reply - This allows you to watch images that are recorded on to the hard disk while at the same time continuing to record.
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Email: Info@Securasound.co.uk T 01948 667600 |