055-05579 SIRENS, HORNS AND BACK-UP ALARMS, AUTOMOTIVE | 075-07502 ALARM SYSTEMS, VISUAL AND AUDIO, ELECTRICALLY AND MECHANICALLY OPERATED DOORS | 280-28030 CONTROL CABLE AND WIRE: SOLID AND STRANDED, SINGLE AND MULTICONDUCTOR, UP TO 600V, FOR USE IN BOILER CONTROLS, FIRE ALARMS, MOTORS, ETC. | 285-28595 Wiring Devices: Adapters, Caps, Connectors, Extension Cords, Fluorescent And Hp Starters, Outlets, Plates And Covers, Plugs, Receptacles, Safety Cord Lock, Switches, Terminals, Etc.(Incl. Recycled Electrical Products, Supplies) | 287-28772 Shelf Hardware, Electronic: Adapters, Clips, Connectors, Dielectrics, Jacks, Lugs, Plugs, Sockets, Solder, Switches, Terminals, Etc. | 340-34016 Fire Alarm Systems, Power Sirens, And Controls | 340-34080 SMOKE DETECTING EQUIPMENT, INCLUDING SMOKE ALARMS | 470-47006 ALARM AND WARNING DEVICES, HOSPITALS OR NURSING HOMES | 557-55750 LAMPS, LIGHTING, LENS, AND SIGNALS, INTERIOR AND EXTERIOR | 690-69054 Monitors And Alarms, Power Generator | 838-83833 Communications: Networking, linking, fibe modems, power over ethernet, wireless | C-00420 ELECTRICAL | C-00540 FIRE ALARM/SIGNAL SYSTEMS | C-00730 INSTALLATION OF ELECTRONIC COMMUNICATION SYSTEMS | C-01440 SECURITY/INTRUSION ALARMS | C-01760 TELECOMMUNICATIONS