This full featured 4 function BEMF decoder is designed for the following Atlas N Scale engines: GP7, GP9, GP15, GP30, and GP35. Included is our auto-adjusting BEMF for outstanding slow speed performance and hassle free set up. Also includes Quiet Drive for super quiet engine performance.
Dimensions 2.73”x.349”x.13” or 69.34mm x 8.865mm x 3.3mm