28 - Electronic Safety and Security

• 28 1000 - Electronic Access Control
  • 08 7400 - Access Door Control Hardware
• 28 2000 - Electronic Surveillance
  • 28 2030 - Video Surveillance
• 28 3000 - Electronic Detection and Alarm
  • 28 3100 - Fire Detection and Alarm
  • 28 3600 - Gas Detection and Alarm