Generic Portable Handheld 0-32% Brix Refractometer with Plastic Box - Dual Scale (Brix & Wort SG)

Place a few drops of distilled water on the main prism, close the daylight plate, and look through the eyepiece. Use the included mini-screwdriver to adjust the calibration screw until the blue/white boundary line aligns precisely with the 0% mark on the Brix scale. Always calibrate at room temperature within the ATC range (10-30°C).

ATC is a built-in bimetallic mechanism that automatically adjusts the optical path to compensate for ambient temperature changes between 10°C and 30°C (50°F to 86°F). This eliminates the need for manual correction using temperature tables, providing accurate Brix and specific gravity readings directly without calculation.

No, this refractometer measures sugar content (Brix) and wort specific gravity, which are used to calculate original and final gravity. To determine actual alcohol by volume (ABV), you must take an initial Brix/gravity reading before fermentation and a final reading after, then use a brewing calculator or formula. For direct alcohol measurement, a dedicated alcoholmeter or densimeter is required.

It is designed for clear, liquid samples with dissolved sugars or solids, such as wort, wine must, fruit juices, syrup, honey diluted with water, and plant sap. Opaque, pulpy, or highly viscous samples may not provide a clear boundary line and can soil the prism, requiring careful cleaning between uses.