The Energy Sensor Pack (ESP) is similar in design to those found on vehicles, starships, and stations. It was built to provide a portable, non-biological, focused scan capability when a mounted sensor suite was undesirable or otherwise unavailable. The ESP became an immediate success and fulfilled a variety of needs that ranged from military operations and starport customs, to research and survey teams.
In general the ESP functions through use of electromagnetic fields. An oscillator within the unit produces an alternating current which is then radiated by the antennas. The radiating waves are not inhibited by metal alloys. The reflected energy is then captured and the information deciphered by a computer. The resulting product can reveal a detailed analysis of any non-biological cargo held within an entity.