This decoder is for a 2 car set only.Decoders for a 1 car set are sold separately.This reliable ESU LokPilot Standard Dual Mode DCC/DC decoder with BEMF, 4 light functions with the function outputs as well as the motor output protected against overload has been programmed by DCC Solutions with motor settings, lighting and your DCC loco ID number to suit the Sprinter model from On Track Models. This model utilizes the 21 Pin socket for an easy DCC installation. We have adjusted the settings of the decoder for slow speed performance.Let us know your prefer Locomotive DCC Address and we will program the decoder to suit that your model before we send it out. So when the decoder arrives, simply plug it in and away you go. Nothing more for you to do, no additional programming, unless of course you want to personalise it to suit the rest of you fleet.Dimensions: 1.00" x 0.61" x 0.18" or 25.5mm 15.5mm 4.5mmSuitable for the HO Sprinter model from On Track Models for a single car. The decoder will be pre-programmed before shipment to make your DCC installation a simple PLUG and GO! Too easy!  What would you like as the DCC Address for your Sprinter