LASER BARCODE SCANNER W/TRIGGER, MAGNETIC CARD READERS AND WRITERS, ELECTRIC VAULT LOCKS, COMMUNICATION CONVERTERS; ACCESS CONTROL SYSTEMS, NAMELY, MICROPROCESSORS AND COMPUTER SOFTWARE FOR CONTROLLING ACCESS THROUGH ENTRANCE WAYS, LOCKING AND UNLOCKING DOORS, AND PROVIDING SURVEILLANCE FUNCTIONS; TIME AND ATTENDANCE SYSTEMS, NAMELY, MICROPROCESSORS AND SOFTWARE FOR REVIEWING EMPLOYEE WORK ATTENDANCE AND DATABASE MANAGEMENT; BUILDING AUTOMATION SYSTEMS, NAMELY, MICROPROCESSORS AND COMPUTER SO...