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| | Name: | Bellwether | | Model: | Alcohol Tralle & Proof Plain Form Hydrometer | | Description: | Alcohol Tralle and Proof hydrometers measure directly in percentage ethyl alcohol by weight in water from 0 to 100%. The Proof scale indicates the proof of alcohol from 0 to 200 proof. Proof is twice the percentage of alcohol by volume in solution. |  |
| | Name: | Bellwether | | Model: | Alcohol Tralle & Proof Combined Form Hydrometer | | Description: | Combined Form hydrometers have a thermometer built-in to the body or stem to measure the temperature of the sample. | |
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