Marvelmind Industrial Beacon RX IP67Marvelmind Industrial Beacon RX IP67 Tracking You finally took your autonomous rover outside into the unforgiving British drizzle, and your standard indoor positioning system drowned faster than a tinywhoop with no conformal coating. Enter the Marvelmind Industrial Beacon RX IP67 tracking receiver. This rugged ultrasonic tracking node is compound sealed to survive factory floors, agriculture rigs, and whatever unholy mess youre calling a robotics lab.