This Drone upgrade scans adjacent rooms for enemies. If an enemy is present within the room the room will have a red marker move over it, green if no hostile is present.

The motion sensor will sometimes be unable to scan a room, leaving a yellow marker. Any room that does not retrieve a signal from a motion sensor will not retrieve signals on any subsequent motion scans.

The Motion Sensor will not detect active defense turrets if any are active within the room.

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