This low-frequency intelligent sounder base is designed for use with compatible addressable detector heads in fire alarm systems and produces a 520 Hz audible signal to support NFPA 72 sleeping space requirements. It is suited for commercial and hospitality applications where low-frequency occupant notification is required, and it supports multiple tone patterns, two sound output levels, and separate external power for sounder operation.
Features
Produces a 520 Hz +/- 10% low-frequency square wave tone
Designed to meet NFPA 72 sleeping space requirements
Two volume levels: 75 dBA or 85 dBA minimum at 10 ft. at 24V in continuous tone
Supports Continuous, ANSI Temporal 3, ANSI Temporal 4, and March Time tone patterns
External supply voltage: 16 to 33 VDC; SLC operating voltage: 15 to 32 VDC
Pre-wire mounting plate supports multiple common junction box sizes
Typically ships in 1-3 business days based on stock levels
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