Features: *It's specifically designed to measure both the Brix and Specific Gravity of your wort or wine, providing precise readings for your brewing or winemaking process. *Unlike other refractometers, our dual scale beer wort & wine refractometer only requires "everyday drinking water" for calibration. *Simply use tap water or distilled water and calibrate within 30 seconds upon receiving or after a period of non-use. *Made of sturdy aluminum, our refractometer is built to last. *Equipped with Automatic Temperature Compensation (ATC), you can trust that your measurements will be precise regardless of temperature variations. Specifications: Product Name: Wort Refractometer Material: Aluminum Color: Silver Black Size: 17.3*4.1cm Measuring Range Brix: 0~32% Accuracy Of Wort Specific Gravity: 1.000~1.120 Automatic Temperature Compensation (ATC): 10°C~30°C (50°F~86°F) Package Include: 1 x Sugar Refractometer, 1 x Pipette, 1 x Protective Carrying Case. Note: Please be sure to verify the size before you order the item. Other accessories demo in the picture is not included. Please refer to the measurement. Tiny measuring error is allowable in normal range. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Unlike other refractometers, our dual scale beer wort & wine refractometer only requires "everyday drinking water" for calibration. Simply use tap water or distilled water and calibrate within 30 seconds upon receiving or after a period of non-use. Equipped with Automatic Temperature Compensation (ATC), you can trust that your measurements will be precise regardless of temperature variations. Material: Aluminum 4.1cm