Green Line Environmentally Friendly Test Equipment
When you throw away an unused or broken hydrometer, you are throwing away lead. That's what the small beads at the bottom are made of. When you throw away an unused or broken thermometer, you may be throwing away mercury. Our Green Line test equipment uses steel shot for bottom weights and non-toxic food grade riser liquid in the thermometers. Help reduce toxins in the environment by buying Green Line.

These units are generally used by distillers, the Tralle scale indicates directly in percent ethyl alcohol by weight in water from 0 to 100%. The Proof scale indicates the proof of alcohol from 0 to 200, at 60°F. Constructed with stainless steel weights. Not for beer or wine.