Fire alarm sounder S-T-100V 1/3W MINI isp.2 with built-in transformer 100V, the choice of 3W or 1W. It is used in systems of notification and control of evacuation of people in case of fire (SOUE) and is designed to work as part of systems with an output sound voltage of 100V.
Frequency range 100-15000, Hz. Ceiling execution.
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