Well, if this has the fan driven smoke unit, you're going to need some extra bits to get full smoke function with chuffing smoke, smoke at idle, and 4-chuff/rev. The Super-Chuffer II gives you chuffing, smoke at idle, optional Rule-17 LED headlight, and optional automatic cab light control. The Chuff-Generator gives you programmable chuff rates and optional automatic ground light control.
The tach reader is not used with the ERR solution, but the tach tape will be useful for the Chuff-Generator.
