Measuring gravity from 0.99-1.17, brix/sphericity from 0-35, and potential alcohol content from 0%-20%, high quality gravimeter makes it easy to your measurements. gravity are not suitable for maple syrup, or other home distilled beverages with high alcohol content. Item: Triple Scale Alcohol Hydrometer Size: . 10.5 x 1 x1 inches Warm Tips: To use the alcohol gravity meter, the alcohol gravity meter needs to float vertically and not touch any object. The measurement container needs to the height of the alcohol meter. The liquid poured in also needs to be at a certain depth in order for the alcohol meter to float in the container. When measuring, the liquid needs to be allowed to stir in the . color:As shown Material:Glass Package Contents: 2 x hydrometers Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.