How to Find the Decoder Serial Number

*Disclaimer* You will need an ESU Lokprogrammer device in order to read your decoder serial number and model.

First, place your engine on the track or decoder onto a decoder tester. Make sure it is plugged to the Lokprogrammer.

Then, click "Programmer" at the top left corner of your screen.

Next, click "Read decoder data," from the drop-down menu.

Once your decoder is successfully connected, follow the steps below in order.