I would explain the situation in detail, but it's kind of a tender/developing situation. We have someone stealing things from a local county building, and we need to be able to catch the person. We believe it to be someone familiar with the building or at least related to someone familiar, as they have to know the access codes to get in the building in the first place and the building has no windows on the walls. It's a large pole structure with I-beams, so any wiring is going to be too noticeable. Even if we could hide the wiring well, time is of the essence with this installation. We can't have it take any more than six hours.
Ideally, we'd like to have 4 cameras that can connect wirelessly into an existing network, where they'll transmit all of their data to a local network NVR. They would probably have to be battery powered, which I...