How is Dori calculated?

Simply divide the horizontal pixels of the camera resolution by the Field Of View in feet (FOV) of the observed scene . For example, a 4-megapixel camera with 2,688 horizontal pixels used to cover a loading dock with a 100-foot FOV, pixel density would be approximately 27 PPF.

Read more

How long does 2tb record for?

Depending on the number of cameras you have connected to the DVR and the recording resolution of those cameras, generally: 500 GB = up to 6 months of recording 1 TB = up to 12 months of recording 2 TB = up to 24 months of recording The more cameras you have connected to the DVR, the shorter this time frame.

Read more