This deluxe hydrometer for beer or wine that is exactly like the triple scale hydrometer but has a built-in thermometer that allows you to instantly correct your hydrometer readings for temperature. A hydrometer reads accurately at 60 Fahrenheit. Temperatures above and below 60F require that you add or subtract from your reading. Like the basic model, the deluxe hydrometer also features three scales - specific gravity, potential alcohol and brix.