Tacho RPM Converter for Low Level Input and High Level Output.
Works with any ECU, stock or aftermarket, to allow you to use your "Old Fashioned" 12 volt driven RPM / Tachos.
For example, Porsche 924 or Datsun 240Z cars have RPM Meters / Tachos driven directly from the coil.
When you fit an aftermarket ECU such as a Link, DTA, Omex, Haltech, Megasquirt, MoTeC, etc etc, the RPM output is a low level signal which will NOT work with your classic cars meter.
Also, if you fit a modern engine with modern coils into a classic car, the RPM Rev Counter / Tacho will no work.
This little box sorts the problem!!
Simply connect the 4 wires and you are away!
12v Ignition Feed to the Red/White Wire.
Body Ground to the White Wire.
ECU RPM Feed to the Grey (Slate) Wire
RPM Out to your Classic Tacho on the Green Wire.
Any questions, please ask!