The Stopper Dome is a polycarbonate siren and strobe cover that is designed to provide maximum protection against physical damage (both accidental and intentional), dust, grime and damage from severe environments indoors and out. One of the polycarbonate siren and strobe cover is the STI-1229, which is a weatherproof cover for surface mount applications which can be used in wet or hose down areas (such as kitchens, cafeterias, meat packaging plants, showers, outdoors, etc.).