Measuring RPM

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=21760
Printed Date: July 20, 2025 at 10:47 AM

Topic: Measuring RPM

Posted By: southwest2118
Subject: Measuring RPM
Date Posted: November 21, 2003 at 5:06 PM

Can Some one tell me how to measure RPM from the engine of a car with a Digital Multimeter with %duty?

Replies:

Posted By: ck auto
Date Posted: November 21, 2003 at 8:06 PM

hi set your meter to ac ground the black lead probe suspectg wire with other lead your voltage should be climb when you rev the motor.

kirk

Posted By: southwest2118
Date Posted: November 22, 2003 at 12:06 PM

I'm sorry i do not understand what you are trying to say, i'm talking about my RPM of my engine with "%duty" on the multimeter

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