This electronic weighing scale with a digital display is ideal for accurate home use or dietary research projects. The zero button allows the weight of an empty container to be discounted thus recording only the weight of the items to be weighed. This facility can be used to continually re-set the display to zero allowing for example the components of a complete meal to be weighed as they are put on the plate. The superb weighing range and accuracy make this machine very good value for money. The unique folding display both protects it and makes the unit more portable. Power is via a long life lithium battery.