28 46 00 Fire Detection and Alarm
28 46 31.21 Multi-Criteria Fire Detectors
28 46 13 Fire-Alarm Systems 28 46 13.11 Protected Premises Fire-Alarm Systems 28 46 13.21 Central-Station Service Fire-Alarm Systems 28 46 13.31 Proprietary Supervising-Station Fire-Alarm Systems 28 46 13.41 Remote Supervising-Station Fire-Alarm Systems 28 46 13.51 Household Fire-Alarm Systems 28 46 14 Single and Multiple Station Alarms 28 46 21 Fire-Alarm Control Units and Related Equipment 28 46 21.12 Fire-Alarm Control Units 28 46 21.22 Fire-Alarm Remote Annunciators 28 46 21.24 Supervising Station Alarm Systems Communications Equipment 28 46 21.26 Fire-Alarm System Printers 28 46 21.31 Fire-Alarm Terminal Cabinets 28 46 21.33 Low-Power Radio (Wireless) Equipment 28 46 21.41 In-Building Fire Emergency Voice/Alarm Communications System (EVACS) Equipment 28.46.24 Fire Command Center Equipment and Displays 28 46 25 Fire-Alarm System Accessories 28 46 31 Fire-Alarm Initiating Devices 28 46 31.11 Heat-Sensing Fire Detectors 28 46 31.13 Smoke-Sensing Fire Detectors 28 46 31.15 Radiant Energy-Sensing Fire Detectors 28 46 31.17 Gas-Sensing Fire Detectors 28 46 31.21 Multi-Criteria Fire Detectors 28 46 31.23 Multi-Sensor Fire Detectors 28 46 31.25 Combination Fire Detectors 28 46 31.31 Fire-Alarm Manual Initiating Devices 28 46 31.41 Fire-Alarm Supervisory Signal Initiating Devices 28 46 33 Public Emergency Alarm Reporting Equipment 28 46 41 Fire-Alarm Notification Appliances 28 46 41.11 Audible Fire-Alarm Notification Appliances 28 46 41.21 Visible Fire Alarm Notification Appliances 28 46 41.31 Combination Fire-Alarm Notification Appliances 28 46 41.41 Tactile Fire Alarm Notification Appliances 28 46 51 Fire-Alarm Supervised Interface Hardware 28 46 51.08 Fire-Alarm Supervised Interface Hardware for Openings 28 46 51.14 Fire-Alarm Supervised Interface Hardware for Elevators 28 46 51.23 Fire-Alarm Supervised Interface Hardware for HVAC Systems 28 46 51.25 Fire-Alarm Supervised Interface Hardware for Integrated Automation