①. Technical specifications: - Alcohol measuring range: 0 - 40 vol%, 40 - 70 vol%, 70 - 100 vol%. - Measuring range thermometer: 0 - 50 °C - Material: glass - Size: approx. 18.5 cm ②. Scope of delivery: - 1x set of 3 alcohol measuring devices - 1x thermometer - 1x storage box ③. 3 spirometers allow you to determine the alcohol content more accurately and easily than using a single measuring device. - Measuring range: 0 - 40 vol%, 40 - 70 vol%, 70 - 100 vol%. - Minimum scale: 1 vol%. ④. The recommended operating temperature is 20°C. But if the alcohol is not exactly 20°C, you can first measure the temperature and then still read the value in the temperature list. ⑤. The marked strips help you see when the beer will be brewed, and the crystal - clear fonts are easy to read. ⑥. Similar to a boiling hydrometer, but measures in a different range. ⑦. The alcohol meter is easy to use. For testing a sample of a spirit drink in a tall glass or highly chemical - resistant plastic cylinder, leave enough space for the alcohol meter to distribute the liquid. - Measuring range: 0 - 40 vol%, 40 - 70 vol%, 70 - 100 vol%, minimum scale: 1 vol%, at 20 ℃ alcohol temperature. ⑧. Also included is a 0 - 50°C thermometer.