A device in the setting of the game Arknights.
Infection monitors are worn by many personnel at Rhodes Island, typically those already suffering from oripathy, but also some uninfected individuals who are at risk of exposure.
In general, they resemble black, solid circlets with inlaid blue lights. They are usually but not always worn close to external oripathy lesions when those are present.
Common varieties include the collars worn by Angelina and Matterhorn, the anklets worn by Ifrit and Silence, and the rings worn by Amiya.