Hi, this isn’t a car-specific question, so I hope it’s not out of place here. I recently found one of these meters (OTC perception 3820) cheap at a garage sale and couldn’t resist picking it up. Now that my excitement has died down, I realize I don’t have any idea how to use it. I’m generally pretty…

OTC perception 3820 Automotive multimeter -- anyone know it?

UncleTurbo September 18, 2011, 10:35am 5

Go to the company’s web site and see if you can download the operators manual.

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