I recently damaged (partially melted/burned the induction pick-up/clamp) my trusty Calterm Electronics 66474 automotive digital test multimeter. I can't find any listing for that model multimeter, or for any parts for it. So, it looks like it's time for a new good quality multimeter with tachometer function.... Or maybe a hand-held tachometer tool that clamps on the spark plug wire to determine RPM. Ideas? Maybe you've had good luck with a certain brand/model that's still available? Thanks in advance for helping me out... Again.