Solar System Monitor

One compact monitor for batteries, inverters, Victron equipment, and cloud dashboards. Track JK BMS, RS485 battery data, inverter telemetry, SOC, temperatures, solar chargers, and alerts from your phone.

Order Now - $35.00 Only $35.00
Solar System Monitor device

Compact Solar Monitoring Device

A purpose-built ESP32 monitoring device for solar and off-grid systems. It connects to JK BMS units over Bluetooth Low Energy, supports RS485 battery and inverter telemetry, and can bring Victron and Cerbo GX data into the same cloud dashboard.

JK BLE + RS485 Battery Data

Monitor JK BMS packs over BLE and supported RS485 battery protocols from the same device.

Inverter, Victron & Cerbo Integrations

Read solar-system telemetry from supported Deye, Sunsynk, Growatt, GoodWe, Victron, and Cerbo GX setups.

Cloud, App & OTA Updates

Send live data to the cloud, view it in the mobile/web dashboard, and receive over-the-air firmware updates as new features are released.

One Dashboard for Batteries, Inverters and Chargers

The Solar System Monitor app gives you live access to BMS, inverter, charger, and cloud data wherever you are.

Live Solar System Dashboard

See battery status, cell voltages, SOC, temperatures, inverter data, charger data, and device health at a glance.

Auto-Refresh

Data updates automatically so you always see the latest readings without refreshing manually.

Multi-Device Support

Manage multiple monitors from the same account and switch between systems from the app or web dashboard.

Solar System Monitor app

Up and Running in 3 Simple Steps

From device setup to full solar monitoring in minutes.

1

Order Your Device

Place your order and receive the Solar System Monitor ready for your battery and solar setup.

2

Connect Your Sources

Use JK BLE monitoring, connect supported RS485 battery/inverter telemetry, or add Victron and Cerbo GX data where available.

3

Monitor from Your Phone

Open the mobile app or web dashboard and view batteries, chargers, inverters, and cloud status in real time.

Everything You Need to Monitor Your Solar Battery System

JK BMS Monitoring

Read JK BMS cell voltages, pack voltage, current, SOC, SOH, temperatures, and protection status through Bluetooth Low Energy.

RS485 Battery Support

Monitor supported RS485 battery protocols, including Pylontech, Voltsmile, EASUN-compatible, DR-1363, Seplos, and Growatt ESS BMS data.

Inverter Telemetry

Bring inverter-side data into the dashboard for supported Deye, Sunsynk, Growatt, and GoodWe systems, including PV, grid, load, battery, and energy readings where available.

Victron & Cerbo Data

Track Victron VE.Direct devices, Victron BLE advertisements, and Cerbo GX Modbus TCP data alongside your BMS and inverter telemetry.

Remote Cloud Dashboard

Cloud-connected monitoring lets you check your solar battery system from anywhere with an internet connection.

Mobile App & OTA Updates

Use the iOS, Android, web, and desktop dashboard while the device stays current through over-the-air firmware updates.

Simple, One-Time Pricing

No subscriptions. No hidden fees. One device, cloud monitoring, app access, and firmware updates included.

Solar System Monitor

No subscriptions. No hidden fees. One device, cloud monitoring, app access, and firmware updates included.

$35.00 one-time payment
  • Solar/BMS Monitoring Device
  • JK BLE Battery Monitoring
  • RS485 Battery & Inverter Telemetry
  • Victron VE.Direct, Victron BLE & Cerbo GX Data
  • Cloud Connectivity
  • iOS, Android, Web & Desktop Dashboard
  • Lifetime Firmware Updates
  • No Monthly Subscription
Order Now - $35.00

Built by SystemFreaks

See the full IoT project showcase — from ESP32 firmware to cloud platform, integrations, and mobile app.

View Project Showcase

Frequently Asked Questions