Excellent for primary use of weighing individual pieces however when using to count (inventory) of small, light weight items, accuracy varies. Example: Using a base of 10 pieces, a physical count of 100 pieces may yield a weight count of 92 pieces. Breaking the same 100 piece physical count into 50 or 25 pieces, the sum of weight counts will not necessarily equal the 100 piece weight count with an expected possible deviation of +/- 2 (50) or +/- 4 (25).