The company's SpectrAlert® series has added selectable output wall-mount horns, strobes, and horns/strobes to its product lineup. The selectable output horns, strobes and horns/strobes are designed to offer the broadest range of candela options. One key feature is that the selectable output strobes and horn/strobes can operate on either 12 V or 24 V with no setting required - the device recognizes and self-adjusts automatically.