CCTV storage calculator: NVR hard drive size
Enter the number of cameras, resolution and compression, recording hours and how many days you must keep footage. The bitrate fills in with a typical value for continuous recording; replace it with the value from your camera settings for a precise result.
Bitrates vary with scene activity, frame rate and smart codecs (H.265+ can lower them a lot), so check the real value in the camera or NVR. Saudi rules on security surveillance cameras set minimum retention periods for many facility types; confirm the period that applies to your activity before you buy drives.
Formula: cameras x bitrate (Mbps) x 3,600 x hours x days / 8 / 1,000,000 = TB (decimal).
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AZEIDK engineers can survey your facility, size the system and handle supply, installation and Civil Defense paperwork.
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