| 摘要 |
A weigh scale including a weighing mechanism; a recording system connected to the weighing mechanism for recording a weight; a comparator connected to the weighing mechanism and the recording mechanism for determining a difference between weights; and an indicator in communication with the comparator for indicating a difference in weights, wherein the weighing mechanism, recording system, comparator and indicator are configured to: measure an initial weight of a subject without indicating the weight and store the weight in the recording system; measure a subsequent weight of the subject without indicating the weight; determine a difference between the initial weight and the subsequent weight; and indicate the difference in weight between the initial weight and the subsequent weight only when the subsequent weight is one of greater or less than the initial weight.
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