| 摘要 |
A buoyant-capable sensor system device is disclosed for use alone or on an apparatus such as a straw, stirrer, mixer, stick or utensil which detects the presence or absence of one or more substances in a beverage or liquid food such as soup comprising a sensing element(s) which is either in direct or indirect contact with the beverage or food and a buoyant sensor body to assure user-visibility of the sensing element(s).
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