The USB 2.0 DVR four-channel Guardian Monitoring and Surveillance System lets you view and record cameras on your desktop or notebook computer from almost anywhere in the world. It is ideal for home or office, and can be a good alternative to more expensive commercial VCR systems — but only if you have the computer system that runs the software. The Guardian USB device, one of Swann’s newest products, does not run on Windows Vista — a big disappointment.
