This dome accepts analog cmara systems from Canon & Bmo and many network cameras from Axis, JVC, Canon, Bmo, Panasonic and Sony. It can also accept a single fixed camera with a maximum lenght of 7.5". The dome can resist a .22 caliber bullet; the lower dome is constructed out of optically clears and durable ploycarbonate. In addition, the unit features a thermostatically controlled 12V DC or 24V AC heater and surge protection.