Beer and Wine Hydrometer with Correction scale and ThermometerA deluxe hydrometer for beer or wine with built in thermometer and correction scale that allows you to correct your hydrometer readings for temperature. A hydrometer reads accurately at 60F. Temperatures above and below 60F require that you add or subtract from your reading. Like the basic model, the deluxe hydrometer also features 3 scales; specific gravity, potential alcohol and Brix (balling). 12.75" long Range is .990-1.160