High Precision Voltmeter (HPVM)

Original price was: $199.00.Current price is: $169.99.

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High Precision Voltmeter (HPVM)

SKU: HPVMR Category: Tag:


Meet the HPVM (High Precision VoltMeter) – the most precise, fastest sampling, smart wireless voltmeter designed for both automotive and car audio enthusiasts.

Voltage, whether you’re using it to create a spark to create combustion, inverting it to drive an electric motor, or pushing it into your amplifier to move a speaker cone to create sound, is critical in your car. Low voltage creates heat, stresses components, limits output, can affect sound quality, and even leave you stranded (if you don’t have enough of it).  Make sure your voltage is always on point with the best tool for the job!

The HPVM is a high-precision wireless graphing voltmeter with 99.99% accuracy / up to 3 decimal places of precision (e.g., 15.234v). It is physically overbuilt with a solid aluminum case, high-density/temperature internal supports, and gold-plated ENIG PCB to survive the loudest and most violent builds.

For instructions on connecting your HPVM, updating firmware, using the app, and more, please see our getting started page.




Supply Voltage 3v-18v
Voltage Measurement Range 1v-18v
Accuracy 99.99% accurate (+/- 0.002v)
Precision 1mV – 3 decimal places (e.g. 15.234v)
Sample Rate 105 samples per second per channel, 210 maximum SPS
Display 1.3″ diagonal TFT HD IPS LCD – 240×240 pixels /  65k color
Visual Refresh rate 33 FPS
Size 40mm x 73mm x 26mm -1.6″ x 2.87″ x 1″
Settings Use the LF Audio smartphone app or AuralSync Companion smartwatch to change settings on the unit.
Over The Air (OTA) firmware updates Use the LF Audio smartphone app to check for and apply firmware updates

Additional information

Weight 1 lbs
Dimensions 1 × 1 × 1 in


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