beer hydrometer have undergone heavy product testing for quality, stable performance and long service life.brewing hydrometer use high quality materials. Free of mercury, lead and other harmful compounds, making your brew more secure and safer.Triple hydrometer has clear scale and accurate measurement. Distinguish by color, so that you can observe the value better, more intuitively and clearly.3 in 1 Design: Convenient 3 in 1 tool allows you to quickly and accurately measure density, alcohol and brix at the same time.2 hydrometers and 2 measuring cylinders are convenient for you to measure.type: Combo Kit of Triple-Scale HydrometerPackage Includes:2 x Triple scales hydrometer1 x 250ml Clear plastic cylinder test jar1 x Transparent glass cylinder test jar1 x Stainless steel brush2 x Hydrometer container1 x Microfiber cleaning cloth1 x Instruction sheet with scale conversion chart1 x Storage bagProduct Name: Combo Kits of Triple-Scale HydrometerHydrometer Specifications1. Specific Gravity: 0.99 - 1.162. Potential Alcohol By Volume: 0%-20%3. Brix\/Balling: 0-35Uses:1. Measure the wort concentration in beer brewing2. Measuring sugar content in wine brewingColour:As shownMaterial:GlassPackage Contents:1 set x wine making suppliesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.