So they, in every living area to 0 corresponding to the bottom a.
For large deviations (slightly sloping floors in various. Rooms) still has unfortunately a difference of approximately 0.5-1.5 kg, ie if one takes them to the hotel or acquaintances you have maybe a slightly different result.
This deviation is but compared to other scales very low.
For this purpose it is in the same room at the same location after adjustment (if you after weighing eg wegstellt again under the bed or in the closet). Always the same result to
So it is reliable and can be stored during the day until the next use and does not need to remain consistently available in the same place as other scales.
A good buy :)