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I was given a small battery powered scale at a teachers conference. It was labeled with the Ohaus brand, a well-know and respected scale and balance maker.
I tried weighing a large paper clip and discovered that if I weighed it 10 times it gave me 10 different readings, a couple of which would indicate that it had negative mass. I'm 99% sure Ohaus didn't make this thing but they bought it from some Chinese scale factory. Maybe the same one that makes all those cheap digital scales i see being sold to reloaders. Now, I'm not saying that some of those scales aren't accurate and/or reliable. What I am saying is that your chances of getting one that isn't accurate or reliable is much greater than if you get a mechanical balance.
Electronic scales are like optics: you get what you pay for, and you rarely get more.
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