Where can I buy a contactless RPM Meter for diagnostic purposes to use on various Johnson Outboard models to verify the idle and full throttle RPM? Thank you!!
Most autoparts stores carry a digital type tach that uses an optical sensor to detect a reflective piece of tape that is applied to the spinning component(test subject).
Electro Specialties makes a good digital hand held tach. esitest.com for around $100<br /><br />For around $49, precsionmfgsales.com has the Tiny Tach digital
