Pelco’s stainless steel spectra IV SE series is designed for harsh environmental installations and meets NEMA Type 4X and IP66 stan-dards. The components (back box and lower dome) provide added protection against corrosive conditions. The pendant-style back box (BB4-PSG-E) is constructed of Type 316þStainless Steel (SS) and includes a sun shield (also constructed of Type 316 SS), heater, and fan. The lower dome features a trim ring constructed of Type 316 SS and an optically clear bubble that is available in smoked (LD53PSB-0) or clear (LD53PSB-1) acrylic. The Stainless Steel Spectra IV SE Series has all the features of the Spectra IV SE dome system (built-in back box memory, two aux-iliary outputs, seven alarm inputs.