Beer Brewing Test Kit | Brix Refractometer and Backlit pH Meter Pen |Fast & Accurate Readings | Great for Home Brewing Beer and Wine BREW WITH EASE - Test brix and specific gravity with just 2 drops of your brew at any temperature PRECISE READINGS - Automatic Temperature Compensation accounts for ambient temperature and adjusts EASY TO CALIBRATE pH Meter Pen with pH 4.01 and 6.86 buffer powders, included POCKET SIZED devices go anywhere easily from home to your buddy's to tasting events ACCESSORIES INCLUDE protective case, calibration screwdriver, 10 x 3ml pipettes, cleaning cloth and calibrating powders