The IP Network Ready 7" Vandal-resistant Rugged Dome model offers versatility and camera protection in a compact size. It accepts analog camera systems from Canon & Elmo and many network cameras from Axis, Canon, Elmo, JVC, Panasonic and Sony or a single fixed camera with a maximum camera length of 7.5". On outdoor models a heater and blower are standard, and a cold weather kit is available to offer even wider temperature ranges. Videolarm's RH75 is a rugged dome designed for applications where tough surveillance is needed. Its cast aluminum body and polycarbonate lower dome 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 camera length on indoor and outdoor models is 7.5" The outdoor models come standard with two heaters and two blowers. Hence the temperature range is -40° F to + 120° F.