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The SpectrAlert Advance series offers the broadest line of outdoor speakers and speaker strobes in the industry. From metal and plastic outdoor back boxes, to white and red plastic housings, to wall and ceiling mounting options, SpectrAlert Advance can meet virtually any application requirement. SpectrAlert Advance outdoor speakers and speaker strobes can be used indoors or outdoors in wet or dry applications, and can provide reliable operation from ?40°F to 151°F. In addition, these speakers provide a broad frequency response range, low harmonic distortion and maintain a high sound pressure level at all tap settings to provide accurate and intelligible broadcast of evacuation messages.
System Sensor synchronization protocol