Recommended Results

  • In your final production stages, you can switch Alex 500 to its standard mode, to determine your beer's alcohol content, original or real extract content and all your other common beer parameters, like calories, degree of fermentation and many more, with lab-grade accuracy.
  • Anton Paar is the world's leading provider of density and alcohol measurement solutions for beer. Alex 500 is the result of decades of expertise boiled down to meet the craft brewers' exact needs.
  • In the fermentation monitor mode, the instrument directly displays a fermentation curve for you, assigned to a tank via sample ID.

Alcohol and Extract Meter for Beer: Alex 500

Alex 500 is a compact alcohol and extract meter that frees craft brewers from the need for external laboratories. The reliable lab-grade analyzer determines your beer’s alcohol and extract content, calories, degree of fermentation and many more typical beer parameters whenever you wish. Now easily able to monitor your entire production from wort to bottle, you can always be sure your bottles contain what their labels say: With Alex 500, you always keep your customer promise.

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Key Features

Patented technology

  • Patented combination  of absorption measurement via NIR spectroscopy and density measurement based on the oscillating U-tube technology
  • Comprehensive statistical model for determination of alcohol and extract content as well as other typical beer parameters
  • Quality, pure and simple, from the world’s leading provider of density and alcohol measurement in the brewing industry

Certainty from fermentation monitoring to final quality control

  • Two operation modes: fermentation monitor mode and standard mode
  • Display of fermentation curves based on density measurement (apparent extract), assigned to a tank via sample ID
  • Measurement of alcohol and extract content in final production stages

More than a hydrometer replacement

  • Covers the entire beer measuring range
  • Provides direct, real-time results at all times, without any separate calculation or distillation
  • Documentation and perfect traceability of measured data
  • Wireless printout of data via Bluetooth or data transfer to a PC
  • Robust, low-maintenance and easy to clean

Quick and intuitive operation

  • Simple, standardized sample preparation
  • Unique sample naming
  • Storage of customized measuring methods
  • Automatic filling of sample via integrated peristaltic pump
  • Easy adjustment with deionized water

Technical Specifications

Measuring range
Alcohol0.5 % v/v to 15 % v/v
Density0.95 g/cm3 to 1.2 g/cm3
Temperature10 °C to 32 °C (50 °F to 89.6 °F)
Alcohol0.2 % v/v
Density0.001 g/cm3
Repeatability s.d.
Alcohol0.1 % v/v
Density0.0005 g/cm3
Additional information
Sample volumeapprox. 40 mL degassed sample per measurement
Output parameters standard modeAlcohol content, density, real/apparent degree of fermentation, calories, degrees lost, original/real/apparent extract content, original/present gravity, SG, spirit indication
Output parameters fermentation monitor modeDensity, SG, °Brix, °Balling, °Plato, °Baumé
Sample fillingIntegrated peristaltic pump
AdjustmentDeionized water
Dimensions (L x W x H)320 mm x 230 mm x 100 mm (12.6 in x 9.1 in x 3.9 in)
Weight2.4 kg (5.3 lbs)
Power supplyAC 100 to 240 V, 50/60 Hz; DC 15 V, 2.6 VA
Communication interfaces1x Bluetooth,
1x USB-B,
1x RS-232
Internal storageStandard mode: 500 measured results

Fermentation monitor mode: 40 Fermentation IDs; 100 measured results per ID
Available accessoriesPortable thermal printer with Bluetooth interface
Serial printer