The main purpose of the remote focus function is to

Who should be responsible for documenting a video surveillance installation?

DRAG DROP
Match each device with the correct description. Drag each gray box from the left column to the matching blue box in the right column.

If a surveillance camera is installed in an environment with fluorescent lighting, which effect may this have on the video quality?

A customer wants his video surveillance system to completely cover the perimeter of his property. For the installer to ensure that the camera system is not subject to sabotage, he should