9 electronic security systems comprised of monitors, video cameras, video cassette recorders, electronically readable coded cards, transponders, control consoles, sensors to indicate physical changes, printers, and alarm indicators (visual and audible); fire detection systems comprised of heat sensors, sensors to indicate physical changes including combustion, obscuration, and rate of temperature rise, manual pull stations, transponders, control consoles, printers, and alarm indicators (visual and audible); critical process control systems comprised of sensors to measure process variables (presence of gas, temperature, pressure, and quantity of various materials, controllers, and monitors; fire fighting apparatus; namely, sprinkler apparatus and sprinkler maintenance apparatus; access control systems comprised of video cameras, video recorders, microphones, speakers, electronically readable coded cards, card readers, keypads, combination keypad/reader panels, control consoles, printers, modems, door exit controls, alarm sensors, and alarm output signallers for use in controlling access to commercial, industrial, educational or governmental buildings; closed circuit television systems comprised of video cameras, video cassette recorders, monitors, lenses, camera mounts, camera control systems, camera enclosures, control consoles, and printers; and parts therefor