Computer software for monitoring factory manufacturing processes, environmental conditions and controlling devices within a building or facility, intrusion and environmental condition alarms; lamp boxes, namely, fluorescent lamp ballasts for electric lights; network communication equipment, namely, computer network bridges, hubs, interface devices, servers, switches, and hardware, and computer hardware and software for setting up and configuring local area and wide area networks; cabinets for loudspeakers; projection screens; transparency projection apparatus; light dimmers, electric; alarms, namely, burglar alarms, fire alarms, gas alarms, smoke alarms, electronic door and exit alarms, personal security alarms