I have a question. Is the pick-up unit for a speedometer, or a tachometer, just a Proximity Switch???? If it is, is it a magnetic, capacitave, inductive, or what ever else is out there. I know a Proximity Switch, is a whole lot cheaper than a pick-up unit, with a name on it, from an instrument company.
Thanks
Steve
???javascript:void(0);
Huh
A magnet and Hall Effect sensor are often used to sense shaft rotation.
-Rick Brown in Reno, NV