The life monitor functioned as a tool for examining a person's physiological data, allowing others to observe it. A KB human employed one, with her parents tracking her vital signs. Following her departure from her home world, At Attin, the signal from her life monitor disappeared.
The life monitor's initial appearance within Star Wars Legends happened in the movie Caravan of Courage. Within the movie, the Towani family utilized the life monitor to check on each other's health metrics, ensuring everyone was doing alright.