Proof & Tralle Hydrometer
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Proof & Tralle Hydrometer.
This Proof and Tralle Hydrometer is a professional grade hydrometer that has a scale that goes to 200 proof. It is used to calculate proof in higher alcoholic beverages as it is not accurate for lower alcohol products like beer or wine.
Watch a video on how to use the Proof & Tralle https://www.youtube.com/watch?v=VouYRKecnxc