Alarm monitoring systems; Audio-receivers and video-receivers; Blank magnetic disks; Coaxial cables; Computer peripheral devices; Optical fibers; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Video recorders; Camcorders; Cameras; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Electronic and optical communications instrument...