Installation projectors are ideal for showing images in large venues such as museums, auditoriums and conference halls. Depending on the lens, they can project an image up to 25 feet in size. These projectors can attach to floor mounts and ceiling mounts. A good unit should have built in stereo speakers, zoom capabilities, high resolution reproduction, tilt features, interchangeable lens capabilities, freeze frame functions, a remote control and mouse, a quiet cooling fan and an on screen display in various languages.
The units accept various input signals, such as video, S video, DTV and HDTV along with computer signals. Most units can run on a wireless computer network along with memory cards. Some models come with antitheft features including password protection modes and operation key locks that can disable the main unit's control buttons. Beware that some units don't have a lens included. The large installation projectors come in assorted sizes, styles and shapes and can range in price from about $5,000 to $35,000.