This horn strobe is a compact, indoor signaling device designed to provide both auditory and visual alerts in emergency situations. With a voltage range of 12/24 volts, it features a clear lens and the bold "FIRE" legend for clear identification in critical moments. Measuring 5.6 inches in length, 4.7 inches in width, and 2.5 inches in depth, this wall-mountable unit is suitable for a variety of installation needs. It operates within a temperature range of 32°F to 120°F, making it reliable for use in various environments.