Products

Two tools. One platform.

Start with the Analyzer and upgrade to full balancing capability anytime — same hardware, just add the tach sensor and unlock the firmware.

Most Popular
Vibration Analyzer

Real-time vibration monitoring with FFT spectrum analysis. Mount, connect, and see what your machine is telling you — instantly on your phone.

  • 6-axis IMU — 3-axis accelerometer + gyroscope
  • Real-time FFT spectrum display
  • WiFi captive portal — no app download
  • Temperature monitoring (built-in)
  • RGB status LED
  • Magnetic mount + adhesive tape included
  • Upgradable to Spindle Balancer
$99 one-time purchase
Prefer Amazon? Buy there instead ↗
New
Spindle Balancer

Everything in the Analyzer, plus integrated tachometer and automatic balancing algorithm. Tells you exactly how much weight to add and where.

  • Everything in the Vibration Analyzer
  • Integrated IR tachometer sensor
  • Automatic influence coefficient balancing
  • Sub-2.5 mm/s residual imbalance achievable
  • Phase accuracy ±2–3°
  • Includes tach sensor + 3.5mm cable
$199 one-time / complete kit
Amazon — coming soon
Upgrade Path

Already own the Analyzer? Upgrade anytime.

The Vibration Analyzer and Spindle Balancer run on identical hardware. Purchase the $100 Upgrade Kit — includes the IR tach sensor, 3.5mm cable, and firmware unlock code. Enter the code in the device's web interface and full balancing capability unlocks instantly — no hardware swap needed.

Same Hardware
Identical sensor board in both products
$100 Upgrade Kit
Tach sensor + 3.5mm cable + firmware unlock code
Instant Unlock
Enter your code in the web UI to enable balancing
No App. No Problem.

Just your phone's
built-in browser.

Power the sensor. It spins up its own WiFi network. Connect — and your phone's captive portal pops open the measurement dashboard automatically. Same flow you already know from hotel WiFi.

01
Plug the sensor into USB-C power
02
Open WiFi settings → connect to "GV-XXXX"
03
Portal opens. You are measuring.
Comparison

See the difference.

Premium capability at a fraction of the cost. No laptop, no cables, no subscription fees.

Feature GrayVolt Balanset-1A EVB-01
Price$99 – $199$2,150$184
Spindle BalancingAutomaticManual setupNot supported
Tach SensorIntegratedSeparate laserNone
Laptop RequiredBrowser/cloudWindows PCBrowser/cloud
Setup Time< 2 minutes15–30 minutesN/A
Sample Rate6,660 HzNot specified6,660 Hz
MountingMagnetic + tapeAdhesive + clampsAdhesive tape
Technical Specifications

Built for precision.

Industrial-grade components in a package smaller than a coin cell battery. Every spec chosen with purpose.

ASM330LHH
6-Axis IMU
6,660 Hz
Max Sample Rate
16-bit
Resolution
±16g
Accelerometer Range
75 µg/√Hz
Noise Density
ESP32
Dual-Core 240 MHz
WiFi 2.4G
Captive Portal
USB-C
5V Power Input
21 × 33 mm
PCB Dimensions
Anatomy

Every component, chosen with purpose.

The smallest wireless vibration sensor you can buy. Every part is here because it has to be — nothing extra, nothing missing.

GrayVolt sensor — transparent x-ray view
3.5 mm Tach Port
IR sensor for phase reference
USB-C Power
5V · any phone charger
ESP32 MCU
Dual-core · WiFi · web server
ASM330LHH IMU
6-axis · 6.66 kHz · ±16g
SLA-Printed Shell
Tough 1500 resin · magnetic base
3.5 mm Tach Port
IR sensor for phase reference
USB-C Power
5V · any phone charger
ESP32 MCU
Dual-core · WiFi · web server
ASM330LHH IMU
6-axis · 6.66 kHz · ±16g
SLA-Printed Shell
Tough 1500 resin · magnetic base
35 × 24 × 14
mm Enclosure
4
Layer FR-4
ESP32
WROOM-E
6-axis
IMU + Gyro
Applications

One sensor. Every machine.

The same precision hardware works across industries. Different machines, same workflow.

CNC Spindles

Reduce spindle vibration for better surface finish and longer bearing life.

Fans & Blowers

Balance commercial HVAC fans in the field without removing them from the duct.

Motors & Pumps

Monitor vibration trends to catch bearing wear and misalignment before failure.

3D Printers

Wireless input shaping calibration. No wiring to your printer's MCU required.

Get Started

Stop guessing.
Start measuring.

Free shipping. 30-day return policy.

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