ZMODO ZP-IBH13-P 720P HD H.264 PoE IP Infrared Weatherproof Camera with QR Code Smartphone Setup - Manual of How to Access IP Camera - Manual (Page 111)

Chapter 4 Access to IP Camera on Internet Explorer
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4.6.3 Storage Settings
▲ Storage Management
Figure 36
If IP Camera has installed SD Card, you can view the total disk capacity and the remaining space.
Loop Video Settings: Click [Loop Video], if SD Card memory is full, system will automatically clear the
oldest video files and continue recording.