Anton Paar is a leading producer of analytical testing equipment for commercial breweries. Borrowing some technology from their high end machines, the EasyDens digital gravity/alcohol tester is designed for savvy home brewers and small commercial breweries.  It is a precision gravity/density testing unit which can accurately read gravity with a tiny 2 ml sample at any point in the brewing process.  Alcohol % can also be tracked at any point during fermentation. The unit hooks up to your smartphone via Bluetooth and stores various fermentation "profiles" enabling you to track fermentation progress, alcohol levels, and help know when it's time to keg & drink your beer!

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