Originally Posted by BarelyAWake
Tiny-Tach is an awesome product, I've had them before. Small, simple, perfect for this application...
why the heck didn't I think of that? /facepalm lol Thanks guys!
Tiny-Tach: Gasoline Tachometers
I would really like to try this device, but it's not available in Poland
I need to find another solutions .