Security access tuner (Earth-5875)

The security access tuner is an electronic device manufactured by Seegson used in private companies and by the UNSC. Its primary function is the course-correction of frequency and fallback codes, including the matching of frequency fluctuations that can override doors.

Description
The security access tuner require a data cell to function, which are inserted into an open slot at the base of the device. The cell is coded with information that allow it to bypass certain security levels, excluding military-grade systems. Yellow cells allow the user to bypass low-security systems, and orange cells allow the user to progress through more fortified systems.

History
In 2547, one security access tuner was stolen and used by Amanda Ripley-McClaren from a dead looter to hack doors and terminals across Sevastopol Station and escape from a xenomorph.