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DVR Calculators
1. Total Recording Capacity in Days or Hours
Select Camera Resolution:
CIF (352x240)
2CIF (704x240)
4CIF (704x480)
Select Number of Cameras:
Enter HD Storage (in TB or in GB): TB GB
Enter Usable HD in (%):* % (< 100%) GB Usable*
Select Frame Rate per Camera: FPS

Estimated Recording Capacity:***
Recording Capacity in Days**
BestAverageWorst
Days
Or Recording Capacity in Hours
BestAverageWorst
Hours

*Not all disk space are usable due to partition and system files. We use data in GB Usable field in calculation.
**Assume 24-hour continuous recording.
***We present three cases to help you better assess the installation environment.
Best - Good lighting, clean picture, low motion or activity.
Average - Normal lighting, relatively clean picture, average motion and activity.
Worst - Normal to poor lighting, picture has noticeable noise, and plenty of motion and activity.
2. Storage Needed in GB
Select Camera Resolution:
CIF (352x240)
2CIF (704x240)
4CIF (704x480)
Select Number of Cameras:
Enter Recording in Days: Days
Enter Recording Hours Per Day: Hours
Select Frame Rate per Camera: FPS

Estimated Disk Storage:*
HighestNormalLowest
GB

*We present three cases to help you better assess the installation environment.
Highest - Select high quality setting in recording. Or normal to poor lighting, picture has noticeable noise, complex scene with lots of motion and activity.
Normal - Select normal or average quality setting in recording. Or normal lighting, relatively clean picture, average motion and activity.
Lowest - Select low quality setting in recording. Or good lighting, clean picture, low motion or activity.
3. Calculate per Camera Bandwidth (in MB per hour)
Select Number of Cameras:
Enter HD Storage (in TB or in GB): TB GB
Enter Usable HD in (%): % (< 100%) GB Usable
Enter Desired Recording in Days: Days
Enter Recording Hours Per Day: Hours

Estimated Bandwidth Per Camera:
Kbps   Or   MB per Hour

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