Get a real tachometer and you will have many uses for it, go with a Fluke meter and you can use it to check your electrical system. Quality only hurts once.
Ask yourself this question. How much is a properly tuned motor worth to you?
Mark44
That may be true but our ride is this weekend and from tomorrow till sunday I will be camped out on an island so I have to work with what I got. Will the TinyTach not work at all?