Northern is the leading provider of cost-effective access control solutions for commercial, industrial, government and institutional customers worldwide. We offer a complete portfolio of innovative access control products and support services that help companies secure their valuable assets and protect their profitability.

• See also:
• Masterformat 2004
• 08 74 00 - Access Control Hardware
• 08 74 13 - Card Key Access Control Hardware
• 26 05 13 - Medium-Voltage Cables
• 26 05 19 - Low-Voltage Electrical Power Conductors and Cables
• 26 05 23 - Control-Voltage Electrical Power Cables
• 28 10 00 - ELECTRONIC ACCESS CONTROL AND INTRUSION DETECTION
• 28 13 00 - Access Control
• 28 13 53 - Security Access Detection
• 28 16 00 - Intrusion Detection
• 28 20 00 - ELECTRONIC SURVEILLANCE
• 28 23 00 - Video Surveillance
• 28 30 00 - ELECTRONIC DETECTION AND ALARM
• 28 31 00 - Fire Detection and Alarm
• 28 31 46 - Smoke Detection Sensors
• 28 33 00 - Fuel-Gas Detection and Alarm
• 28 34 00 - Fuel-Oil Detection and Alarm
• 28 35 00 - Refrigerant Detection and Alarm
• 40 95 13 - Process Control Panels and Hardware
• 40 95 73 - Process Control Wiring
• Masterformat 1995
• 08715 - Exit Devices
• 08740 - Electro-Mechanical Hardware
• 13430 - Boxes, Panels, and Control Centers
• 13700 - Security Access & Surveillance
• 13850 - Detection and Alarm
• 16120 - Conductors and Cables