Security Siren/Strobe (490-0478) Features Faxback Doc. # 15882 Light The Radio Shack Security Siren/Strobe Light is designed to connect to your existing security system. If the security system is triggered, the siren's eye-catching dual strobe light flashes and a powerful 115 dB siren sounds to attract attention to your home. The siren is easy to install indoors or outdoors (in areas protected from rain and snow, such as under an eave or on a porch), and its compact, sturdy high-impact polycarbonate housing protects it from the elements. (ALL-07/13/95)