Live Device Monitoring · ESP32 Powered

Know your battery's
health from anywhere

VMON100 monitors 12V battery voltage, temperature, and signal strength in real time. Works with vehicles, boats, RVs, generators, elevators — anything with a 12V battery and WiFi. No app needed.

Live Dashboard

Everything at a glance

A clean, real-time dashboard showing all your devices, sensor readings, and alerts — from any browser or your iPhone home screen.

12.8V

🔋 Battery

98°F

🌡️ Temp

-66 dBm

📶 Signal

16h 21m

⏱️ Uptime

📈 Signal History — Last 20 samples

VMON100 Prototype

● Online

VMON100 Unit 2

● Online

Use Cases

Works wherever there's a 12V battery

If it has a 12V battery and WiFi access, VMON100 can monitor it. WiFi must be provided at the location — mobile LTE support coming soon.

🏍️

Motorcycles

Monitor your Harley, Can-Am, or any bike battery while parked in the garage.

🚐

RVs & Campers

Track house battery health and temperature remotely while your rig is in storage.

⛵

Boats & Marine

Keep an eye on your boat's battery at the marina — know before you go.

🚗

Cars & Trucks

Daily drivers, stored classics, or fleet vehicles — monitor them all.

🛷

Sleds & ATVs

Seasonal equipment in storage? Know the battery is ready when you are.

⚡

Generators

Backup generator battery monitoring so it's ready when the power goes out.

🏗️

Elevators

Monitor backup battery systems in elevators and industrial equipment.

🔧

Any 12V System

Solar setups, UPS batteries, equipment — if it's 12V with WiFi, it works.

Platform Features

Built for real-world monitoring

⚡

Live Voltage Monitoring

Track 12V battery health in real time. Color-coded alerts when voltage drops below safe thresholds.

🌡️

Temperature Sensing

Monitor ambient or battery temperature with configurable warning and critical thresholds.

📶

Signal Strength

Track WiFi RSSI with a visual signal bar and 20-sample history chart.

📱

iPhone Home Screen App

Add VMON100 to your iPhone home screen via Safari. Launches full screen — no App Store needed.

🚐

Fleet Management

Group devices into fleets, assign users, and manage access with role-based permissions.

🔒

Secure by Default

JWT authentication, per-device API keys, role-based access control, and full audit logging.

📡

ESP32 Powered

Affordable, reliable hardware reporting heartbeat, voltage, temp, and signal every 60 seconds.

🔄

OTA Firmware Updates

Push firmware updates to devices over the air. No physical access required.

❓

Unknown Device Detection

New devices are automatically detected and queued for registration — no manual hunting.

Setup

Up and running in minutes

Simple hardware, simple setup.

Flash the ESP32

Upload the VMON100 firmware to your ESP32 dev kit. Connect sensors and power from your 12V battery.

Connect to WiFi

The device creates a setup hotspot on first boot. Connect and enter your WiFi credentials via the built-in portal.

Monitor Live

Your device appears on the dashboard immediately. Add to your iPhone home screen for instant access anytime.

Mobile App

Install on iPhone — no App Store needed

VMON100 is a full-screen web app. Add it to your iPhone home screen in Safari and it launches like a native app — no browser chrome, no loading screens.

Open vmon100.com in Safari on your iPhone

Tap the Share button (box with arrow at the bottom)

Tap "Add to Home Screen" then Add

Launch from home screen — full screen, no browser chrome!

📲

Add to
Home Screen

Pricing

Simple, honest pricing

Start free. Scale as you grow. No surprise fees.

🆓 Garage

Free

Forever. No credit card.

1 Device · Single User

✓Live voltage, temp & signal
✓7 days history
✓Online / offline status
✓iPhone home screen app
✗Alerts & notifications
✗OTA firmware updates

Get Started Free