System Sensor’s SSM Series alarm bells are low-current, highdecibel notification appliances for use in fire and burglary systems or other signaling applications. They come pre-wired to
reduce installation time, and also incorporate a polarized electrical design for use with supervision circuitry.
Reliable performance. SSM Series alarm bells provide loud, resonant tones. They operate on 24 VDC and are
motor-driven.
Simplified installation. For indoor use, SSM Series
alarm bells mount to a standard 4" (10.16 cm) square electrical box. For outdoor applications, a WBB weatherproof
backbox is used.
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