SBS-2003 Digital Hydrometer and Tester

Digital Battery Hydrometer / Density Meter

Specific Gravity Tester for Lead-Acid Batteries

Specific gravity testing is easy and efficient with the SBS-2003. Simply insert the nozzle into the battery and depress the finger pump, which draws a few drops of sulfuric acid (H2SO4) through the tube. Within three seconds the measured refractive index is converted into a temperature compensated specific gravity reading and the specific gravity, temperature and cell count are displayed. After testing is completed, you can transfer the data to your computer via Bluetooth and download results into an Excel report.

Combining a light weight and durable design with easy maintenance, field-replaceable spare parts and a large data storage memory, the SBS-2003 is suitable for use with lead acid batteries.

The SBS-2003 has the added benefit of storing the results for future download via Bluetooth.

hydrometer transfers battery specific gravity data to Excel via Bluetooth


  • Measures specific gravity, ambient temperature and count within 3 seconds
  • Automatic temperature compensation to 77° F (or 25° C)
  • Time savings: 5 times faster than conventional methods
  • Stores up to 1000 readings
  • Wirelessly transfers testing data via Bluetooth to provided software to create an Excel report


  • Able to record temperature in Fahrenheit or Celsius
  • ± 0.002 accuracy
  • LCD display
  • IP64 water resistant

Example of Cost Savings

SBS field studies show time savings of at least 5 times (500%) using a digital hydrometer over a standard glass hydrometer and thermometer.

If you spend 60 minutes testing specific gravities every month in 20 sites, this total, 60 minutes x 20 sites x 12 months per year = 14,400 minutes divided by 60 minutes = 240 labor hours per year.

Since we can reduce this time by 500%, 240 hours divided by 5 = 48 hours total time with the SBS-2003.

That’s a savings of 192 hours per year. Multiplied by $45.00 per hour labor cost with benefits: 192 x $45.00 = $8,640.00 of savings per year.

time savings by using digital hydrometer vs. manual hydrometer

digital battery hydrometer SBS-2003, lead acid battery hydrometer


PDF Document - SBS-2003 Data Sheet

SBS-2003 PDF Digital Battery Hydrometer - User's Manual

- Cleaning Guide

PDF Document - SBS-2003 Data Capture Directions

SBS-2003 XLS Digital Battery Hydrometer - SBS-2003 Data Capture Excel Download

Storage Battery Systems - SBS 2003 Digital Battery Hydrometer video

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SBS 2003 Digital
Battery Hydrometer

Applications / Industries

  • Utility
  • UPS
  • Data Centers
  • Telecom
  • Material Handling

lead acid battery hydrometer

SBS-2003 Includes

  • Main unit
  • Instruction manual
  • Excel template software
  • Three (3) filling tubes
  • 9V battery
  • Adjustable hand strap
  • Hard case

Accessory Ordering Information

Part No. Description
2002/3-SPR-PRT-KIT Spare parts kit includes: O-ring, sample
chamber w/ rubber pump, (3) 9" sample tubes
2002/3-TUBE 9" filling tube for SBS-2003
2002/3-HOL Holster w/ belt for SBS-2003
SBS-TE CASE Soft case for hydrometer


Method of Detection Specific gravity; light refraction method
Temperature Measuring: 5 to 40° C (41 to 104° F)
S.G. Range 1.000–1.400
Measuring Time Within 3 seconds
Power Supply (1) DC9V alkaline battery
Calibration Distilled or de-ionized water
Accuracy Specific gravity: ±0.002 @ 10 to 30° C (50 to 86° F)
Temperature: ±1° C @ 10 to 30° C (1.8° F @ 50 to 86° F)
Size 2.75" D x 1.75" W x 8.25" H; 10.75 oz.
Filling Tube 9.5" L x 1/8" diameter

Available: Complete Battery Testing Package

When the SBS-2003 Digital Hydrometer is combined with our SBS-6500 battery diagnostic internal resistance tester, it becomes an all-in-one solution for your battery testing needs. This package is popular with vented lead acid clients and companies with NERC requirements or IEEE standards.

Package of hydrometer and resistance tester

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