The Safe T Beam photoelectric infrared safety beam system that senses people or objects in the garage door’s path to prevent entrapment. The Genie openers include advanced features such as the Intellicode coding system used in transmitters and receivers. The Genie garage door company is one of America’s best known and trusted consumer brand names and has a long history of innovation in the garage opener market. Genie Garage Door Opener Installation Manuals