[Boatanchors] Harbor Freight little red wonder DMM question - input impedance

Dave Merrill r390a.urr at gmail.com
Thu Mar 19 09:30:48 EDT 2009


The manual for the red Model 98025 that I have does not state the
input impedance, just the accuracy.

BTW, a useful improvement to these meters is to add a tiny amount of
white paint in the recessed arrow of the Range Selector Switch so it's
easier to see from a distance where the meter is set.

On Thu, Mar 19, 2009 at 2:15 AM, Greg Mijal <bluebirdtele at embarqmail.com> wrote:
> Hi:
>
> Can someone look in their Centec DMM manual and tell me what the input impedance is on the voltage scale.
> This is the  red cased  DMM that Harbor Freight sells on special for around $2.95 and I'm going to buy a high voltage probe to check some amplifier power supplies with it. Lost my manual some time ago.
> My guess is 10 meg
> Thanks
> Greg
> WA7LYO
> Kinston NC


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