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Re: Digital VOM



Its $99.99 in Canada. I will be looking for that item, next time I am in a
store.
My other meter is the Fluke Model 73. The PC interface interests me.

----- Original Message -----
From: "Bob Bruninga" <bruninga@usna.edu>
To: <amsat-bb@AMSAT.Org>
Sent: Thursday, July 19, 2001 09:37 pm
Subject: [amsat-bb] Digital VOM


> Testimonial:
>
> We have a dozen of the $59 Radio Shack Digital VOM's and for student lab
> use, we didnt care much about their quality.  But after two years of
> abuse, I am more and more impressed with these things:
>
> 1)  THey have a serial port interface so that any PC becomes a DIgital
> Oscope (for slow signals) with included software.
>
> 2) THey run forever on a 9v battery.  Most of them are still on the
> original battery (more than 2 years).  THey auto shut off if not in use,
> but if the voltage is changing, then they will stay on forever.  Thus,
> very long battery life and no frustrating shutoffs on long monitoring.
>
> 3) Doing critical measurmemnts tonight on our satellite, we figured we
> would compare many of them and choose the two that were closest together.
> The first two we tried read 300.1 and 300.1 MA!  Thats better than 0.03%
> relative accuracy.  We were shocked to see them even close for Radio
> Shack... but they were identical! (We dont have anything better with which
> to compare absolute accuracy)...
>
> 4) We took them into a freezer at 0 deg F and when we brought them out
> (July Humidity), they were dripping wet in condensation.  We opened them
> up to dry out, but the INSides were bone DRY.  THus very good air seal for
> a non o-ring plastic case.
>
> 5) I have left them on the dashboard of the car in summer heat.  The LCD
> display gets black, but no permenant damage.
>
> Overall, I am amazed for $59.  I think that was a sale price, but they are
> only $69 regularly I think.  I have no interest in this, but just thought
> others might learn from our experiences.  I cannot complain about them one
> bit...  Oh, they are the bright yellow ones.  CAT No. 22-805.  I believe
> the current model is slightly different, but I cannot see any
> difference on the outside.  Model number is probably different...
>
> For what it's worth...
> de WB4APR, Bob
>
>
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