Eagle Eye SG-100M Electronic Hydrometer / Liquid Density Monitor

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The Eagle Eye SG-100M specific gravity meter/liquid density monitor will replace ordinary glass bulb and optical refractometer hydrometers that are limited in range, utility and functionality. The SG-100M has an in-tank, drop-hang submersible probe that measures, monitors, records, and controls specific gravity/liquid density during a mixing, blending, fermentation, distillation, or plating operation. The SG-100M offers many user-customized options that allow the instrument to fit your exact measuring needs. The measurement probe can be purchased independently for integration into an existing PLC (Programmable Logger Controller). Optional 4-20mA analog output board or dual 5 amp relays for process control are also available. Cabling is either Teflon or PVC depending on the measuring sample.

The SG-100M is easy to use and versatile. Simply submerge the measuring probe up to 500m and connect to an electronics module to provide digital readouts of user defined values such as Density, Specific Gravity, Baume, Brix, and alcohol %. Pressure is irrelevant for the SG-100M, it can measure in any depth or density of liquids or slurries. The measurement probe is chemically resistant with PVD/Teflon wire strain relief and 315 stainless steel springs.

Technical Specifications:

Measurement Range:

Density: 0.550 – 2.000 g/cm3
Sample Temperature: 20 – 106 °C (40 – 220 °F)

Pressure Range:

0 – 5 atm (operable in vacuum)


±0.005 g/cm3


±0.001 g/cm3


±0.004 g/cm3

Minimum Sample Volume:

310 mL

Data Transfer:

Analog Voltage Data Logger (optional)


4 – 20 mA, dual 5 A Relay



Operating Environment:

-20 – 106 °C (-40 – 220 °F)

Power Requirements:

Control Module: 120/240 VAC
Probe: 0 – 5 VDC


Probe: 280 x 51 mm (11 x 2 in)


Probe: 2.3 kg (5 lbs)

Cable Length:

Teflon: 1.2 – 30.4 m (5 – 200 ft)
PVC: 1.2 – 452.4 m (4 – 500 ft)

Alpine Power Systems is a value-added reseller of Eagle Eye products. Alpine can provide battery testing equipment services on all Eagle Eye products including engineering, installation, preventative maintenance, monitoring and recycling. Alpine provides services for data centers, telecom, healthcare, oil & gas and many other applications. Call our inside sales group at 877-993-8855 for assistance.


Downloads & Documentation

See below for documentation relating to this product line that is available to download. To download this documentation, please click on the desired document you’d like to download and fill out the required form information fields. You will be able to view and download the documents upon completion of the download form.

  • sg-100m-data-sheet-112019.pdf
  • SG-100M-Operating-Manual-072619.pdf