Need Multimeter with Tachometer

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.

 

Trust yer due diligence... maybe you can find a replacement here... ws

https://www.ebay.com/sch/i.html?_fr...313&_nkw=inductive+pick+up+clamp&_sacat=34998

 

I recently bought an Actron pro series digital multimeter with tach on ebay. It cost me about $11 and works great. There are usually a lot of new and used tachs on ebay for pretty reasonable prices.

 

Thanks for the suggestion, yachtsmanbill. So obvious, yet I didn't think of it.

Unfortunately I couldn't find any specifications for the induction clamps listed on the ebay site, so I have no idea if they're compatible with my Calterm product... Or, are they all the same?

So, it looks as though I'm going to end up purchasing a new digital multimeter (with induction clamp).

Any recommendations? Anyone?

 

Thank you Anthony.

 

I bought a hand held point and shoot photo tach. at napa. works good. https://www.napaonline.com/en/p/BK_7002608

 

If you happen to find a multimeter with a frequency counter, you can clip it to the neg side of the coil, and muliply the freq in Hz by 15 to get RPM.

 

I have a fluke 88 with the tach cable.don't use it much anymore, but works good.

 

87GN_70GS: Interesting. Why does multiplying the frequency by 15 result in an accurate (I assume) count of RPM?
[NOTE: I just went out to my garage and found that my Actron multimeter (with the damaged inductive clamp) does have a frequency counter. I'll give it a try as a tach.]

dan zepnick: The "Fluke" trade name brings back memories about my early days as a trainee electrical inspector at Douglas Aircraft Co. in the late 60's. The Fluke product line apparently was a good one.

Thank you both for the input, by the way.

 

Still looking??? ws

https://greenbay.craigslist.org/tls/d/sun-inductive-diagnostic/6631855900.html

 

Yes I am, yachtsmanbill. Unfortunately, I'll be diverted from my "quest" for another 2+ weeks while I take care of another issue.
Thank you for the lead, though.

 

The physics works out to 15 rpm/hz. Every engine revolution (crank) , the V8 fires 4 times. So that's 4 spark pulses. Theres 60 sec per min. (a hz means 1/sec). 1 spark per sec is a Hz.