Instrument Technology's Under-Door Scope slides under doors in less than 1/4-inch space. The entire room from the floor up may be observed with its 30-degree offset line of sight and integrated four-way viewing capability.. The scope features a dedicated C-mount for use with a video camera and an optional viewing eyepiece for visual observations. The Under-Door Scope has a state-of-the-art high-resolution optical system with enhanced low-light capability. This fast optical design with the IR Emitter, which directs energy more efficiently in the scope's viewing direction, allows viewing in the dark without the need for night vision equipment. A highly sensitive, low-noice microphone also can be installed for audio surveillance.