SG-Ultra Digital Hydrometer Specific Gravity / Density Meter

Model # SG-Ultra

The Eagle Eye SG-Ultra digital hydrometer/density meter offers 99.999% accurate, temperature-compensated specific gravity, density, and density-related values. Select from multiple units of measure to suit your measurement needs or create custom user-defined requirements. The signature rubber boot helps protect the meter in rugged field environments. The SG-Ultra is commonly used for battery testing (lead-acid & Ni-cad), alcohol and food testing, petroleum testing, and other custom density tests.

Store up to 1,100 measurement results internally with the SG-Ultra digital hydrometer/density meter. Results include sample identification, measurement unit, temperature correction coefficient, instrument identification and date & time. Results can be downloaded to a printer or PC easily with included infrared adapters. Every SG-Ultra comes pre-assembled and ready to test out of the box. Reliable results appear in seconds - just immerse the sampling tube, pull the trigger, and read the final result. Review and trend these results with included management software.

The SG-Ultra specific gravity tester is user-friendly, utilizing an easy-to-navigate interface with a backlit display. The user has total control for perfect measurements. With the SG-Ultra digital hydrometer, the sampling speed can be adjusted to the task. Slower triggers avoid the formation of air bubbles while fast triggers rinse the cell chamber efficiently. The cell chamber is clearly visible at all times to avoid problematic results caused by air bubbles or impurities.

Be sure to check out our selection of digital hydrometers, including the SG-1000 battery digital hydrometer, a critical tool in determining the charge level of lead-acid batteries.

The SG-Ultra Kit Includes:

  • SG-Ultra Body
  • (1) Sample Tube (7" x 1/8")
  • Fitted Protective Boot
  • IrDA Adapters
  • SG-Ultra Management Software
  • Carrying Case
  • User Manual

The SG-Ultra has a measuring range of 0.000 to 2.000 g/cm³. If you need a larger measurement range, the Eagle Eye SG-Ultra Max digital hydrometer/density meter will fit your needs, with a measurement range of 0.000 to 3.000 g/cm³.

  • Specifications
  • FAQs
  • Benefits

Technical Specs

Measurement Range:Density: 0.000 – 2.000 g/cm3
Sample Temperature: 01 – 40 °C (321 – 104 °F)
Viscosity: 0 – 2,000 mPa
Accuracy:Density: 0.001 g/cm3
Temperature: ±0.2 °C (±0.4 °F)
Resolution:0.0001 g/cm3
Minimum Sample Volume:2 mL
Communication:IrDA Interface
Display:Backlit LCD
Internal Storage:1100 Results
Operating Environment:10 – 50 °C (-15 – 122 °F)
Power Requirements:(2) AAA Batteries
Dimensions:229 x 114 x 64 mm (9 x 4.5 x 2.5 in)
Weight:360 g (2.7 oz)
Sample Tube Dimensions:178 x 3.175 mm / 7 x 1/8 in. Diameter
*Custom lengths available


What are some common applications areas for this product?
Common applications include but are not limited to:

  • Utilities
  • Alcohol
  • Food & Beverage
  • Telecom/Communications
  • Aviation
  • Industrial Manufacturing
  • Chemical and Lab Testing
  • Motive Power
  • UPS Manufacturer
  • Petroleum
  • Electroplating
  • Medical/Biotechnology
  • Mining
  • Battery Suppliers and Service Groups
  • Quality Control Testing

What is the measurement range of the SG-Ultra Digital Hydrometer / Density Meter?
The density range is 0.000-2.000 g/cm3

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

How many measurements does the SG-Ultra store?
The SG-Ultra stores up to 1,100 results internally

What is the maintenance for the SG-Ultra Digital Hydrometer?
Maintenance is dependent on use and care. The device should be cleaned after each use. The consumable parts (pump, tubes, washers) of the SG-Ultra should be monitored closely and replaced regularly as needed

When do I need to calibrate?
It is recommended to have the digital hydrometer calibrated annually

Does the SG-Ultra come with software?
A macro enabled Excel software comes standard (32 bit office). If purchased with an IBEX-Pro or Ultra an adapter is available for use with Exmons Ultra Plus. Exmons software allows you to incorporate the specific gravity & temperature measurements with internal resistance & voltage data from the IBEX-Series testers

How long does the SG-Ultra 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


  • 99.999% Accurate
  • 10x faster & more safe than conventional methods
  • Measures specific gravity and temperature simultaneously
  • Automatic temperature compensation
  • User-controlled sampling
  • Rugged and durable with protective boot
  • Wireless communication with easy transfer
  • Data management software
  • Plain language display with back-lit dot matrix
  • 90 Hours of battery life
  • CE Compliant
  • One Year Warranty
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  • Model #

    Digital Hydrometer / Density Meter, Data-Logging,
    Range: 0.000 to 2.000

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Reviews & Recommendations
"The SG-Ultra hydrometer is without a doubt the best on the market, easy-to-use, easy-to-clean, very accurate and durable. I liked it so much that I bought another one."

– Mark (Cleveland Utilities)
Companies We Serve
  • Johnson Controls IncAmerican Electric Power
  • Battery Testing Reseller: HD-SupplyHoneywell
  • Mississippi PowerAES
  • US PeroxideAirport Services International Group
  • EnersysLuminant
  • Orange County Sanitation DistrictCleveland Utilities
  • Garkane EnergyPrimax Technologies