Scarab drones are tiny quadcopters powered by rechargeable batteries and used to detect traps and people in rooms. They are the size of the old Nano QX, and were used as a disposable way to detect traps. They are preprogrammed with a hive mentality, which can result in swarms developing when several of them are in close proximity. They use biometric sensors to detect people in the room, and have an LED that turns from green to red upon detection. They are equipped with a camera and have limited range FPV, which was implemented before the outbreak when they were used by the military.