Below are some of the terms used in the descriiption of Postal Scales.
Tare: This is a function where part of the item to be weighed should be excluded for example a box containing components where the box is not to be included in the delivery. The box can be weighed the Tare button can be pressed the scale is set to zero, when the contents are added only the contents will be weighed.
Auto Shut Off. This is where a battery is used to power the scale. The power is shut off automatically within a minute or two when the scale is out of use.
Platform is the tray on which items are weighed.
Mechanical Scales, these are traditional scales where no electric or battery power is required.