Electronic surveillance equipment and parts therefore, namely, remote control video surveillance cameras and lenses, mounts, viewing domes, pan and tilts, controls, switches, electrical cables, power supplies, transformers, relays, video signal interfaces, amplifiers, inserters, video and audio transmitters and receivers, alarms, computer monitors for receiving alarm signals for monitoring system, modems, matrix switchers, video cassette recorders and players and mounting cabinetry for the same