9 SECURITY SYSTEMS FOR PRIVATE, MILITARY, COMMERCIAL AND INDUSTRIAL INSTALLATIONS AND OUTDOOR AREAS COMPRISING MICROWAVE DETECTORS, MOVEMENT DETECTORS, PASSIVE INFRARED DETECTORS, COMBINED DUAL-MODE DETECTORS, ACTIVE INFRARED BEAMS, GLASS BREAK DETECTORS, VAULT AND SAFE DETECTORS, TEST METERS, MICROPROCESSOR CONTROL UNITS, ELECTRIC LOCKS AND KEYS THEREFOR, MICROWAVE LINKS, ACTIVE INFRARED BARRIERS, SENSE DETECTORS, UNDERGROUND DETECTORS, INDOOR AND OUTDOOR SIRENS, RADIO TRANSMITTORS AND RECEIVERS, CLOSED CIRCUIT TELEVISION MONITORING UNITS, CONTACTS; FIRE ALARM DETECTORS, MANUALLY ACTIVATED ELECTRIC INPUT SIGNALS FOR USE BY SECURITY GUARDS, CONTROL PANELS, SIRENS AND SOUNDERS