The PKI 7200 X-Ray Scanner is based on the principle of registration of the back-scattered Xradiation from the enclosures located behind various kinds of obstacles (steel, aluminium, wood etc.) and designed for detection of the enclosures located in the optically opaque and covered-up spaces, such as motor vehicle doors, seats, fuel tanks, wheels, truck body walls, racks etc. PKI 7200 is a handy, dust- and splash-proof device which can be operated either as a stationary version (with power from the mains of 100-240V) or as a portable version (with power from the supplied battery pack of 12 VDC). PKI 7200 surely detects the enclosures measuring down to 2x2x2 cm with the density ranging from 0.5 to 2 g/cm3 (plastics, organic and inorganic substances) which are located behind the obstacles with a maximum thickness of 40 mm for wood, 10 mm for aluminium and 1.0 mm for steel.