CAT ET3 USB WIFI V2019A Diagnostic Tool for Caterpillar Trucks & Excavators

CAT ET3 USB WIFI V2019A Diagnostic ToolThis professional diagnostic scanner is specially designed for Caterpillar trucks and excavators. It supports USB and WIFI dual‑connection modes for flexible operation.

It can read & clear fault codes, view real‑time data streams, perform component testing, ECU programming and parameter configuration. Widely used for maintenance and troubleshooting of CAT heavy‑duty trucks, construction machinery and excavators.

Stable V2019A software version, easy to install and operate, ideal for repair workshops and machinery dealers.