28 46 00 Fire Detection and Alarm
28 46 31.17 Gas-Sensing Fire Detectors
28 46 13Fire-Alarm Systems28 46 13.11Protected Premises Fire-Alarm Systems28 46 13.21Central-Station Service Fire-Alarm Systems28 46 13.31Proprietary Supervising-Station Fire-Alarm Systems28 46 13.41Remote Supervising-Station Fire-Alarm Systems28 46 13.51Household Fire-Alarm Systems28 46 14Single and Multiple Station Alarms28 46 21Fire-Alarm Control Units and Related Equipment28 46 21.12Fire-Alarm Control Units28 46 21.22Fire-Alarm Remote Annunciators28 46 21.24Supervising Station Alarm Systems Communications Equipment28 46 21.26Fire-Alarm System Printers28 46 21.31Fire-Alarm Terminal Cabinets28 46 21.33Low-Power Radio (Wireless) Equipment28 46 21.41In-Building Fire Emergency Voice/Alarm Communications System (EVACS) Equipment28.46.24Fire Command Center Equipment and Displays28 46 25Fire-Alarm System Accessories28 46 31Fire-Alarm Initiating Devices28 46 31.11Heat-Sensing Fire Detectors28 46 31.13Smoke-Sensing Fire Detectors28 46 31.15Radiant Energy-Sensing Fire Detectors28 46 31.17Gas-Sensing Fire Detectors28 46 31.21Multi-Criteria Fire Detectors28 46 31.23Multi-Sensor Fire Detectors28 46 31.25Combination Fire Detectors28 46 31.31Fire-Alarm Manual Initiating Devices28 46 31.41Fire-Alarm Supervisory Signal Initiating Devices28 46 33Public Emergency Alarm Reporting Equipment28 46 41Fire-Alarm Notification Appliances28 46 41.11Audible Fire-Alarm Notification Appliances28 46 41.21Visible Fire Alarm Notification Appliances28 46 41.31Combination Fire-Alarm Notification Appliances28 46 41.41Tactile Fire Alarm Notification Appliances28 46 51Fire-Alarm Supervised Interface Hardware28 46 51.08Fire-Alarm Supervised Interface Hardware for Openings28 46 51.14Fire-Alarm Supervised Interface Hardware for Elevators28 46 51.23Fire-Alarm Supervised Interface Hardware for HVAC Systems28 46 51.25Fire-Alarm Supervised Interface Hardware for Integrated Automation