Wheelock Mass Evacuation Systems
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Wheelock Series STH Cluster Speaker with Four STH-15SR Horns and One DC-MAX-X Strobe Mounted to a NE

Model #STH-4MSR

Wheelock’s Series STH Cluster Speakers are designed for high ambient noise environments. The Cluster Speakers are available in multiple configurations. Provides high intelligibility voice reproduction and available high intensity visual alerting (STH-MSR models) for emergency alarm and protective signaling.

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