The Brix Hydrometer with °F Thermometer is calibrated to show the percentage of sucrose by weight at 68°F. The scale is based on the following: 1°Brix = 1% sucrose by weight at the specified temperature (68°F) * The thermometer includes a correction scale printed opposite the temperature scale for conversion of the reading to 68°F SPECIFICATIONS: * Brix Range: -5 to 5° * Color: Clear * Length: 14.6 in (37 cm) * Material: Borosilicate Glass * Measuring Type(s): Brix, Thermometer * Quantity: 1 Each * Subdivisions: 0.1° * Thermometer Liquid Fill: SafetyBLUE * Thermometer Range: 30 to 130°F * Thermometer Subdivisions: 2°F * Warranty: 1 Year