Abstract: An apparatus for achieving remote guarding of an area with adjustable effect on unauthorized entrants, comprising an operator station including a signal receiver with television display, radiant energy selection control, and energy level controller, a first sensor means placed about the area for detecting the presence and movements of entrants to the area, the visual effects of later radiation directed toward them, and generating signals in response thereto, a source of radiant energy including at least one transmitter of the energy for broadcasting the energy into the area, upon selection of the type of radiant energy from the selection control, and of a level controlled by the energy level controller, the radiant energy of a nature and intensity capable of varying in strength and duration as to cause different observable effects on intruders present in the area who do not leave the area upon command, second sensor means placed about the area for detecting the onset of and intensity of the radiant energy bro