Description
HPVM Pro Voltage Meter
- Precision volt meter for automotive and car audio
- 2-inch LCD with 65,000 colors
- Monitors four sources simultaneously
- Measures up to 18 volts
- A gauge face for every style, with sharp numbers and smooth dials
- Competition face holds the lowest voltage of each hit
- Bluetooth-enabled connection with free AuralSync app
Your Style. Our Precision.
Able to monitor four sources at once, the HPVM Pro is the most versatile graphing volt
meter available today, accurate to 2/1000 of a volt.
The HPVM comes equipped with Bluetooth connectivity, allowing it to connect to the
free AuralSync™ app, optional AuralSync™ Companion Smartwatch, and other
AuralSync-enabled devices.
Pick your gauge face in the free AuralSync™ app. See each face live, just as it looks on your meter. Then set your own voltage ranges and colors.
Want big numbers, a dial or a graph? Take your pick. Tiles and Rings show all four channels at a glance. The Sag face shows how far each channel drops under load. The Wire Loss face shows how much voltage your wiring loses. The Night face uses dim orange numbers for driving after dark.
Running a 4S lithium bank? The Pro can show the voltage of each cell.
The HPVM also features wiring terminals on the back and bottom of the unit for
additional mounting options, and a clean look.
Made for Competition
The Competition face shows your live voltage. On every hit, it holds the lowest voltage on screen. It stays up long enough to read.
Tune it in the app on your own live voltage. Choose how big a drop counts as a hit. Choose how long the low stays up. Reset it with a tap.
Easy Settings in the App
Every meter setting sits on three tabs: Face, Voltages and Meter. Set your gauge range, color zones and sleep voltage on one live scale. Calibrate the meter to your own multimeter in a few steps.
Built To Last
Extremes in vibration, humidity, and temperatures are always attacking everything in
your vehicle. A solid aluminum case houses high-density/temperature internal supports,
and gold-plated ENIG PCB to survive, and thrive, in any build.
Advanced Power Management
The HPVM’s innovative Deep Sleep mode is engineered to minimize power
consumption, drawing just 167 milliwatts when it senses a gradual voltage drop without
transients. This ensures minimal battery drain, taking up to 294 days to deplete a fully
charged 100 amp-hour 12V AGM battery.
While in low-power mode, the HPVM Pro continuously monitors cumulative battery
drain. A prominent red warning signal is triggered by significant voltage drops, flagging
potential issues such as excessive parasitic loads or a failing battery. This intelligent
design ensures early detection of power system issues, identifying issues like a weak
battery or excessive parasitic draw, before they become bigger problems.
The system’s rapid response circuitry also ensures immediate reactivation upon
detecting a voltage spike, seamlessly resuming full operation, and offering real-time
updates to keep you informed.
For instructions on connecting your HPVM, updating firmware, using the app, and more, please see our getting started page.
Features
| Supply Voltage | 3v-18v |
| Individual Voltage Monitoring Points | 4 |
|
Voltage Measurement Range |
1v-18v |
| Accuracy | 99.99% accurate (+/- 0.002v) |
| Precision | 1mV – 3 decimal places (e.g. 15.234v) |
| Sample Rate | 320 samples per second per channel |
| Display | 2.0″ diagonal TFT HD IPS LCD – 240×320 pixels / 65k color |
| Visual Refresh rate | Up to 33 FPS |
| Settings | Use our LF Audio AuralSync™ smartphone app or AuralSync Companion smartwatch to change settings on the unit. |
| Over The Air (OTA) firmware updates |
Use our LF Audio AuralSync™ smartphone app to check for and apply firmware updates |
Physical Info
| Size | 71mm wide x 61mm deep x 25mm tall |
| Weight | 3.0 oz |
Getting started / wiring instructions
Certifications
📖 Documentation
Full user guides, installation videos, and troubleshooting at help.lf-audio.com/hpvm:
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