DVR Security System Review

The SVAT Clearvu1 is an extremely compact all in one surveillance system, the main unit houses the system monitor and internal hard drive.  The hard drive of the SVAT Clearvue1 is manufactured by Seagate and has a 160-gigabyte capacity, the system monitor is 7 inches in width.   Triplex functionality is built in to the DVR enabling you to playback recorded camera footage without stopping the system from recording.  Four bullet cameras are included with the system that have a ¼ inch colour CCD image sensor and a 3.6mm focal length.

12 infra red light emitting diodes are built in to the bullet cameras for motion detection, these have a 15 foot range.  The cameras are capable of capturing video footage in low light conditions, have a resolution of 420 TV lines and are suitable for setting up outdoors.  The cameras white balancing functions are automatic and their shutter speed can be adjusted to between 1/60 to 1/100000 sec.  Although the cameras included with the DVR use an NTSC video signal the system is able to record video in both PAL and NTSC modes.

When using an NTSC video signal the DVR can record video at a maximum resolution of 704*240, PAL offers a slightly hirer maximum that being 704*576.  Video playback by the DVR can be displayed at a maximum resolution of 704*240 using an NTSC video signal, when using a PAL signal the DVR can play back video at resolutions of 704*288.  The hard drive for the DVR can be removed and replaced with another if more storage space is needed, you can fit hard drives that have a maximum capacity of 750 GB.

Video recorded by the DVR can also be transferred to external storage devices as it has a USB port, the port is also used for firmware upgrades.  You can record surveillance cameras footage with the DVR at a maximum speed of 30 frames per second.  The DVR is fitted with four BNC ports to accommodate surveillance cameras and it is fitted with two video outputs so you can view the footage it records on external monitors.

Quad functionality is built in to the DVR so you can monitor attached cameras individually or the system will divide its display into four sections, this allows you to view the output of all cameras attached to the DVR simultaneously.  Video recording is activated by means of motion detection, scheduling or alarm activation and the system has an Ethernet port so you can connect it to a computer network for remote monitoring.

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