(HPVM) High Precision Voltmeter
Description
HPVM Voltage Meter
- Precision volt meter for automotive and car audio
- 1.3-inch LCD with 65,000 colors
- Monitors two sources at once
- Measures up to 18 volts
- Customizable display with ten gauge faces
- Bluetooth-enabled connection with free AuralSync™ app
Your Style. Our Precision.
The HPVM is the most versatile graphing volt meter available today. Accurate to 1/500 of a volt and capable of measuring two sources simultaneously, 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.
Use the app to choose any one of ten gauge designs, then create user-definable voltage ranges and custom colors to make each look match your needs, and your style.
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.
Maximum Battery Efficiency
To save your battery power, the HPVM is equipped with Deep Sleep mode. When a gradual voltage drop with no transients is detected, the meter automatically reduces power consumption to just 167 milliwatts. At that rate, it would take 7,059 hours (294 days) to fully drain a 100 amp hour 12V AGM battery.
Once the meter detects a voltage spike, it instantly returns to full operation. It will also display total battery drain during low-power mode and issue a bright red warning if the voltage drop was significant, signaling a weak battery or excessive parasitic draw.
For instructions on connecting your HPVM, updating firmware, using the app, and more, please see our getting started page.
Features
| Supply Voltage | 4v-18v |
| Individual Voltage Monitoring Points | 2 |
|
Voltage Measurement Range |
1v-18v |
| Accuracy | 99.99% accurate (+/- 0.002v) |
| Precision | 1mV - 3 decimal places (e.g. 15.234v) |
| Sample Rate | 330 samples per second per channel, 660 maximum SPS in dual channel |
| Display | 1.3" diagonal TFT HD IPS LCD - 240x240 pixels / 65k color |
| Visual Refresh rate | 33 FPS |
| Power Consumption | ~460mW full power mode ~167mW in deep sleep move |
| 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 44mm deep x 25mm tall |
| Weight | 2.3oz |
Getting started / wiring instructions
Certifications
📖 Documentation
Full user guides, installation videos, and troubleshooting at help.lf-audio.com/hpvm:
Frequently Asked Questions
See it from every angle
Drag to explore it from any angle.
HPVM vs HPVM-PRO comparison
| HPVM | HPVM-PRO | |
| Supply Voltage | 4v-18v | |
| Individual Voltage Monitoring Points | 2 | 4 |
| Accuracy | 99.99% accurate (+/- 0.002v) | |
| Precision | 1mV - 3 decimal places (e.g. 15.234v) | |
| Sample Rate | 330 samples per second per channel | |
| Display | 1.3" diagonal TFT HD IPS LCD - 240x240 pixels / 65k color | 2.0" diagonal TFT HD IPS LCD - 240x320 pixels / 65k color |
| Visual Refresh rate | 33 FPS | |
| Size (width / height / depth) | 71mm x 44mm x 25mm 2.8" x 1.73" x 1" |
71mm x 62mm x 25mm 2.8" x 2.45" x 1" |
| Weight | 2.3oz | 2.9oz |
| Power Consumption | ~460mW full power mode ~167mW in deep sleep move |
|
This voltmeter is absolutely awesome and accurate.
I love it. Best voltage guage out there
Fire
I love everything about it. It has tons of features and settings. You can custom it to be exactly how you want. Very accurate and very fast.
Great Voltmeter! Very impressed
Looks incredible really happy with the build quality. Look forward to installing it!
I replaced my Usain Volt meter with it.Fast response time to display voltage. Awesome options. Durabile af. Looks badass wherever it's mounted.
Works exactly as advertised. Multiple gauge faces with 4 position viewing and decimal adjustability is great. I'm running 1 decimal place on a single signal. Works great. Matches my dmm exactly. Good work. Con would be it's a little small, but it's really not because the screen is clear and bright enough.
I've always been a fan of the SMD voltmeters with how quick they respond. Only issue was they are hard to read at a quick glance.
Not only does the HPVM-PRO have a quick refresh rate it's easy to ready. I love how I can see voltage from my amps, both battery banks and alternator on 1 screen. I can see how my electrical is behaving and make it easier to spot any problems.
Have yet to install but just playing with it on the bench. Let me just say, it is dope! Very easy to get lost in all the gauge faces and adjustments that can be made. Can't wait to install this beast.
Easy to install and has a lot of different options
Looks cool too👍🏾
Love my meter. Very accurate!
I will never be able to use any other meter ever again I thought I was charging at a higher voltage then I am I also thought I was dropping to a lower voltage then I am by almost a full volt so the accuracy and speed are amazing and his other products coming are true game changers
I honestly didn't think the HPVM could be outdone but here we are.
Same ridiculously fast refresh rate and accuracy but with more options and a much larger screen. Still compact enough to fit anywhere in a dash or center console, too.
LF Audio is top notch, hands down.
If you don’t think you need this volt meter, you need this meter. The capability to monitor (4) different sources of your audio system is huge . I can see how my truck handles the bass with my current set up identifying any power drops that are more than what I want… I tested all points against my fluke and no + or - was needed for adjustment in HPVM.
This volt meter is incredibly accurate. There's so many functions on the app to make the meter even cooler! I highly recommend this item if you care about your audio equipment and batterys. Very simple to install instructions are pretty straightforward
This meter is so precise its incredible! There's many setting on the app that I yet have to learn , the install instructions are on point and very easy!
HPVM is pretty damn snazzy. Super accurate down to 3 decibel places. Can update extremely fast the fit an finish on this product is prestine. Nice solid aluminum case. Really easy to see matte finished on the colored screen. It also can monitor at 2 points.
This bad boy can connect to an app on your phone and allow for new faces an features in the future. Your able to adjust everything like voltage, polling rate, how many decibels you want to see an more.
HPVM will eventually connect with future products as a whole wireless ecosystem. Big things coming.
Bad Ass meter 💪
This is definitely a volt meter for audio fanatics. So many options to fine tune your meter and dial it in 100%. Lf audio absolutely killed it .
This hpvm is literally the best I have seen in the car audio world. I have used from cheap eBay to expensive ones they non of them could come close to the LF hpvm. 10/10 product can't wait for other LF products.
Just got mine in and hooked to my 68ah lishen bank from itty bitty boom. it's so precise it can pick up when I turn the display on my bank on
Just got this volt meter hooked up and am using the 2nd monitor location to monitor the truck and the first to monitor my lithium! This meter is very well built! I'm excited to test all of its features! Thank you for making such an awesome product!
I just received this package in the mail got it installed and I'm in love this thing is so accurate and reads so fast 10 times faster than the leading competition I've done the research and it's actually helping me learn about my cars voltage and the difference between batteries etc. this thing is amazing and well surpassed my expectations can't wait for the wireless system controller to drop
