 The Speedway Revolution introduced Autopilot technology, which enables the reader to reconfigure itself as the environment shifts.Introduced in 2010, the Speedway xPortal is a RFID fixed reader that combined the Speedway Revolution with Dual-Linear Phased Array technology, with a smaller design than previous reader portals.Whereas previous portal readers weighed about 150 lbs, the Speedway xPortal weighs 6.5 lbs and measures 40.5 x 8.72 x 2 inches.