Cleaning Field Device

The Cleaning Field Device is a compact, autonomous sanitation unit that appears in the later Murderbot Diaries, primarily as a background element in Fugitive Telemetry. Designed to scrub surfaces, recycle waste, and maintain hygiene in tight quarters like shuttles and stations, it becomes an unexpected plot device when its routine operations intersect with investigations into corporate sabotage and murder. Though it lacks sentience, its logs and sensor data provide crucial forensic evidence that helps Murderbot unravel conspiracies. Across the series it evolves from a mundane appliance into a subtle reminder of how even the most ordinary SecUnit-adjacent technology can be repurposed for detection and truth-seeking.