System Sensor B112LP low-profile detector base for 4-inch mounting footprint smoke and heat detector installations.

Compliance

• NFPA 72
• UL 1971
• UL 1638
• UL 464
• UL 1480

Key features

• 4-inch mounting footprint fits standard single-gang and 4-inch octagon electrical boxes
• Low-profile housing minimizes protrusion below ceiling surface
• UL 1971 listing supports visible notification applications in hearing-impaired occupancies
• Compatible with NFPA 72 conventional and addressable notification appliance circuit requirements
• Suitable for commercial fire alarm system retrofits and new construction

System Sensor (a Honeywell brand) B112LP bases are designed for installations where ceiling depth or aesthetic constraints require a compact form factor. The 1-inch conduit entry pattern and standard mounting geometry support direct replacement of legacy bases in commercial buildings. Compatible with detector families used on Notifier, Gamewell-FCI, Silent Knight, and Fire-Lite systems per device family specifications.

Verify panel/device family compatibility before ordering.