Gradient badge
A gradient badge, also referred to as a security badge, was a hexagonal gray device used by the Borg Artifact Research Institute. Research personnel working in the gray zone were required to keep their badges visible at all times, as they were used to indicate the level of safety aboard the . Researchers were advised that if it started to blink green, they should run. ()

Soji Asha was among those who wore the badge. Her badge briefly went green during a tense interaction with Ramdha, a patient in the Disordered Ward, after she asked what caused the submatrix collapse. ()
Sensor technology