Designed specifically for the accurascale Class 37  locomotive with ‘Refurbished’  Engine Configuration, this decoder works seamlessly with the onboard lighting, PowerPack stay-alive system, roof fan and dual speaker configuration to reproduce the characteristic sound and function of the locomotive at work.

This Chip is suitable for all Refurbished Class 37 variants, including 37/4, 37/5, 37/6 and 37/7, with the exception of the Original Class 37 which can be found here