MSD 8969 Digital RPM Window Switch

Are you looking for an RPM Switch that will turn a circuit on, then off at a different rpm? How about one for your late model coil-per-cylinder ignition system? Or, something for your car with dual coil packs? Maybe one for a Viper or even a Harley Davidson? Look no further, our new Digital RPM Window Switch will do it all! This Switch will accept an input rpm signal from a coil negative terminal (for stock ignitions), a tach output from an ignition control, an ECU tach output or even a 5 volt tach signal. Another great feature is that no rpm modules are needed! The rpm act