Eagle Eye Power Solutions

SG-Ultra Max Digital Battery Hydrometer, Density Meter

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The SG-Ultra Max Digital Battery Hydrometer, Density Meter measures the density and density-related values of your sample within seconds. Results appear on the backlit LCD screen and are ready for storage, printout or export to a PC. The lightweight and robust design enable on-site operation in a wide range of environments. Completely sealed, pump spills do not enter the electronic battery hydrometer. The SG-Ultra Max Digital Hydrometer and portable density meter feature leak-proof housing for operation in industrial and field applications including battery testing for utilities and telecoms, food & beverage testing, quality control, biotechnology, and many more. Supported measuring units include density, density at reference temperature, specific gravity, alcohol, API, °Baumé, °Brix, and five programmable custom functions to ensure your measurement requirements.


  • Accuracy: 99.999%, accurate
  • User Friendly: Compact, lightweight and allows for one-hand measurement
  • Wireless Communication: Infrared data interface for data exchange with a PC and data export to a printer
  • Storage: Stores up to 1,024 total measurement results including time stamp and sample ID
  • Reliable: CE compliant and one year warranty

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Measurement RangeDensity: 0.000 – 3.000 g/cm3
Sample Temperature: 0° – 40°C (32° – 104°F)
Viscosity: 0 – 1,000 mPa
AccuracyDensity: 0.001 g/cm3
Temperature: ±0.2 °C (±0.4 °F)
Resolution0.0001 g/cm3
Repeatability0.0005 g/cm3
Minimum Sample Volume2 mL
CommunicationIrDA Interface
DisplayBacklit LCD
Internal Storage1024 Results
Operating Environment10 – 50 °C (-15 – 122 °F)
Power Requirements(2) AAA Batteries
Dimensions140 x 138 x 27 mm (5.5 x 5.4 x 1.0 in)
Weight368 g (13 oz)


Product Literature

Technical Information


What is the measurement range of the SG-Ultra Max Digital Hydrometer / Density Meter?
The density range is 0.000-3.000 g/cm3

Does the SG-Ultra Max work with my solution?
The SG-Ultra Max works with a vast range of solutions across many unique industries. The best method to verify if the unit will work with your solution is to compare the Ultra Max wetted parts list with a chemical compatibility chart of your solution (parts list found below):

SG Ultra Max Wetted Parts List:

  • Borosilicate glass Measuring cell, pump cylinder
  • Kalrez O-ring for SG-Ultra Max Ex Petrol
  • POM (Polyoxymethylene) Faradex Housing for SG-Ultra Max Ex Petrol
  • PP (Polypropylene) Faradex MS002 Housing for SG-Ultra Max
  • PVDF (Polyvinylidene fluoride) Connection block, bolt
  • Viton O-ring for SG-Ultra Max

How accurate is the SG-Ultra Max?
The SG-Ultra Max is accurate to 0.001g/cm3 with repeatability of 0.0005

How does the SG-Ultra Max communicate?
The Ultra Max uses infrared data association communication (IrDA)

What is the measurement range of the SG-Ultra Max?
The density range is 0.000-3.000 g/cm3

How long does the SG-Ultra Max take to display measurement results?
Measurement times vary depending on unit and sample temperature. The sample will have to equilibrate inside the measuring cell. This process generally takes only a few seconds but in some situations may take up to a minute

How many measurements does they SG-Ultra Max Density Meter store?
The maximum stored results are 1,024

What file format is the data imported to the PC as?
Data is exported from the SG-Ultra Max as either a CSV or TXT file. This can be viewed using Microsoft Excel or Exmons Ultra Plus software

What is the maintenance for the SG-Ultra Max digital hydrometer?
Precise measurements demand a well-functioning precision tool. The device should be cleaned after each use. The consumable parts of the Ultra Max should be monitored closely and replaced regularly as needed

How often should I calibrate my SG-Ultra Max digital hydrometer?
It is recommended to have the unit calibrated annually

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