Videolarm RHW7CF2 is a rugged vandal proof dome designed for applications where tough video surveillance is needed. Its cast aluminum body and polycarbonate lower dome enclsoure is perfect for warehouses, parking decks, correctional facilities, power plants, stadiums, airports, bus terminals, schools, and more. The 7" Vandal-Resistant Rugged Housing models are available for indoor and outdoor applications. OptiClear polycarbonate domes, clearest domes in the industry, are a feature of these models. Maximum security camera length on indoor and outdoor models is 6.5" The outdoor models come standard with two heaters and two blowers. Hence the temperature range is -40ø F to + 120ø F.