Rad DXG is a sturdy and durable industrial grade mobile portal radiation monitor used for detecting radiation properties. Rad DXG utilizes 2 to 4 large-area plastic scintillation detectors to detect the movement of gamma emitting isotopes passing through doorways, entrance gates, or other similar openings. This instrument is durable, easy to operate, and requires minimal training. Installation can be permanent or temporary. All data of the system is stored in non-volatile memory and can be saved for 10 years.