DLV-Pro Data Logging Battery Voltmeter

Model # DLV-Pro

The DLV-Pro Data Logging Voltmeter allows for fast & easy battery voltage testing with built in digital data-logging capabilities. The DLV-Pro automatically measures and records cell voltages in less than 1 second, enabling hundreds of cell voltage readings to be measured from a string of cells without having to write down a reading or push a button. The DLV-Pro increases testing efficiency by allowing the user to take hundreds of cell voltage readings from a string of battery cells without having to manually write the voltage or even push a button.

  • Specifications
  • FAQs
  • Benefits
  • More Info

Technical Specs

Measurement Range:0 – 20 VDC
Accuracy:Accuracy: 0 – 4V: ± 5mV / 0 – 20V: ± 10mV
Resolution: 0 – 4V: 1mV / 0 – 20V: 1mV
Test Speed:1 second per cell
Memory Configurations:Option A: 8 Strings of 256 VDC, 8 Strings of 256 S.G., 20 Strings of 48 VDC
Option B: 20 Strings of 48 VDC, 20 Strings of 48 S.G.
Display:35 x 28 mm (1.4 x 1 in) color LED
Operating Environment:Temperature: 0 – 40 °C (32 – 104 °F)
Humidity: 0 – 80% (0-31°C) / 0 – 50% (32-40°C)
Power Requirements:Rechargeable 3.7 V Li-ion, Approx 20 Hr


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

  • Forklift / Motive Power
  • Telecommunications
  • UPS Testing
  • Power Utilities
  • Mission Critical Facilities

What parameters does the DLV-Pro measure?
The standalone tester measures cell voltages ranging from 0-16V. Specific Gravity (SG) readings can be imported to the device and tied to specific voltage readings with use of the Eagle Eye SG-Ultra Max Digital Hydrometer; see the DLV-Max Battery Testing Kit.

How does the Discharge Test functionality work?
During a discharge test, the DLV-Pro Voltmeter can be used to measure up to 11 voltage readings per cell. These readings can be transferred to the software for analyzing and reporting. The unit itself does not perform a discharge; external test equipment such as load bank would be required to produce the load on the battery system.


  • Record, view, & analyze cell voltages with statistical & graph analysis
  • Targeted applications include: Telecom, Utilities, & Motive Power
  • Optional memory configurations to best suit a variety of applications
  • Perform a full battery discharge test & analyze results on-site during the test
  • Replay animated discharge tests
  • Export test data to PDF reports or Excel spreadsheets

More Info

Easily measure and record float cell voltages in two formats: 8 strings of 256 readings or 20 strings of 48 readings with the DLV-Pro. The DLV-Pro can also perform a full discharge test on up to 256 cells by recording up to 11 time-stamped voltage readings for each cell, along with time-stamped load current readings (via a shunt/current probe).

The DLV-Pro provides immediate, on-site analysis of all battery test data including threshold, statistical and graphical reporting, battery and individual cell discharge curves. Threshold limits for all modes can be set manually on the instrument or via the USB/PC interface. Test data can be uploaded to a PC using the included Winmeter 5.1 Battery Analysis Software via a USB 'plug in play' interface. Winmeter 5.1 has power report generation and database capabilities. The DLV-Pro can also export the readings to a USB flash drive or print the data directly to an optional IRDA printer. The user has full control over the data and can edit, delete or insert test data prior to creating a battery analysis report.

DLV-Pro Kit Includes:

  • DLV-Pro Voltmeter
  • Winmeter 5.1 Battery Analysis Software
  • Soft-shell Case
  • Belt-clip
  • Voltage Leads
  • NIST Calibration Certificate
  • Mini-USB Cable
  • AC/DC Power Supply
  • Eagle Eye USB Flash Drive

Eagle Eye offers the DLV-Pro with our SG-Ultra Max Digital Hydrometer / Density Meter to form the DLV-Max Battery Testing Kit. The DLV-Pro is programmed to work with the SG-Ultra Max Digital Hydrometer to incorporate specific gravity values to generate a compete battery analysis within the included Winmeter 5.1 Battery Software.

Request a Quote

Or call toll-free

Request Information
  • Model #

    Data Logging Voltmeter, 0-20 VDC Range

Request a Quote

Or call toll-free

Eagle Eye Power Solutions NERC Compliance

To view a full list of our product videos, visit the video page.>