2015A Caterpillar ET3 Adapter III Communication: 1. Real 2015A Caterpillar ET3 Adapter III P/N 317-7485 Professional Diagnostic Adapter for CAT with WIFI This is the only recommended communication device for CAT, and the only datalink device that will allow you to properly communicate with a CAT engine on dual datalinks. CAT ET III WIFI Caterpillar ET3 Adapter III 317-7485 Diagnostic Scanner CAT Communications Adapter III 317-7485 is the latest generation of the CAT Communication Adapter group, and replaces the CAT Comm Adapter II.This function is needed for some CAT ET (Electronic Technician) functions.
