Features:

• Take a highly accurate gravity reading at any point in the brewing process even when alcohol is present.
• Very fast and simple to use
• Only uses 2ml of sample
• Automatic Temperature Compensation
• Connects and displays via free app on your phone or tablet
• Based on oscillating u-tube principle which is known as world's most accurate testing method
• Extremely durable
• Measures in specific gravity and alcohol can be determined with original reading
• App features graphing for gravity and alcohol
• App stores batch records (10) and can email a batch record as a .csv for saving.

Specifications:

• Measuring Range  
• Extract:    –10 %w/w to 40 %w/w
• Sugar:    –10 °Brix to 80 °Brix
• Specific Gravity (SG): 0.700 - 1.200
• Alcohol:    0 %v/v to 100 %v/v
• Temperature:    5 °C to 30 °C / 41 °F to 86 °F
• Accuracy   
• Extract:    0.3 %w/w
• Sugar:    0.3 °Brix
• Specific Gravity (SG): 0.001
• Alcohol:    0.5 %v/v
• Temperature:    0.2 °C / 0.4 °F
• Resolution  
• Extract / Sugar / Alcohol:    0.1 %w/w / °Brix / %v/v
• Specific Gravity (SG): 0.001
• Temperature:    0.1 °C / 0.1 °F

Additional Specifications:

• Sample volume:    approx. 2 mL
• Ambient temperature:    5 °C to 35 °C / 41 °F to 95 °F
• Storage temperature:    5 °C to 35 °C / 41 °F to 95 °F
• Humidity Range:    5 % to 90 % relative air humidity, non-condensing
• Interface:    Bluetooth Low Energy
• Power supply:    Two 1.5 V LR6 AA alkaline batteries or two AA NiMH rechargeable batteries
• Battery operation lifetime:    > 40 hours
• Dimensions:    120 mm × 80 mm × 35 mm / 4.7 in × 3.1 in × 1.4 in
• Weight (incl. batteries):    200 g / 7 ounces
• Mobile Operating System:    Android 4.3 and higher; iOS 7.0 and higher