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It's been years since I have messed around with electronics. And most of what I dealt with was building analog synthesizers. Nothing digital. Not sure if these new multimeters would have features to tell you frequency, or peak voltage. I think an oscilloscope would be used, not that I have ever owned one. But you can probably find the specs online somewhere. Since they make universal cruise controls, the voltage from the speed sensor is probably standard. You might be able to find that in the specs for an aftermarket cruise control. And you might be able to find approximate pulse rates for various speeds. But for this project, you would just need a pulse rate that the unit wouldn't reject. It doesn't matter whether pulse rate represented 40mph, or 80mph. You just want the CC unit to try to maintain the artificial speed by holding the throttle steady.
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