To establish the connection with the engine, you also need the HDS²lite adapter and the adapter cable. You can buy the HDS²lite hardware at Hatz dealers and service partners (hatz.to/network). With the HDS²lite app you can easily and comfortably: read error codes wirelessly, display current operating values, reset maintenance indicators, create and send engine reports or locate the nearest Hatz service partner. The HDS²lite app thus simplifies workshop operation or fault analysis in the field. With the help of the HDS²lite adapter, Hatz engine data from construction, agricultural and municipal machines can be transferred to your mobile device in no time at all. Prerequisite: The engine must be electronically controlled. This applies to engines of the Hatz H-Series and with Hatz E1 technology.