I have two digital scales, a my weigh KD 8000 and a Escali Model Pana V63.  My hubby asked me to weigh some linguine.  He likes to divide it since we are the only two in the household.  I weighed the amount on the Escali, and then on the KD 8000.  There was a difference in the ounces.  One weighed at 8.1 ounces, and then the other scale weighed 8.5 ounces.  I was surprised.  I do use the batteries instead of the adapter.  Has anyone heard of such a discrepancy between 2 scales?  This is the first time I ever weighed anything using two different scales.