System Sensor’s SpectrAlert series of selectable output wall-mount horns, strobes and horns/strobes have a patent-pending voltage booster design that has a more consistent flash bulb voltage over the range of candela selections. The selectable output line features two- and four-wire operation, and universal mounting integrating the QuickClick features that eliminates mounting screws. The products operate on either 12 V or 24 V with no setting required. System Sensor

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