PylonCheck: check your Pylontech from anywhere
PylonCheck — also written Pylon-Check — is a small WiFi box that reads your Pylontech battery through its CONSOLE port and puts everything in a private cloud dashboard: Pylontech diagnostics and monitoring, from your phone, wherever you are. 39 €, no subscription.
What PylonCheck does
PylonCheck turns the service port of your Pylontech into a live window on the battery — and keeps what it sees.
- Pylontech diagnostics: every cell voltage and their spread, State of Health, cycles, temperatures, protection flags — battery by battery
- Cloud monitoring: live values every two minutes, 3 years of history, offline and cell-balance email alerts
- At home: local dashboard, Home Assistant auto-discovery, MQTT, JSON API, Jeedom — even without internet
- Safe: read-only, never writes to the BMS, the inverter link is not touched
Four hops, no port to open
PylonCheck in figures
| Price | 39 €, no subscription |
| Size | 72 × 72 × 25 mm |
| Batteries | US2000, US2000C, US3000C, US5000, UP2500, Force L1 — up to 16 per stack; Force H2 / H48050 early installs |
| Connection | RJ45 to the CONSOLE port (cable included), WiFi 2.4 GHz, USB-C 5 V |
| Cloud | Live every 2 min, history 3 years, email alerts, CSV, private JSON link |
| Local | Web dashboard, JSON API, MQTT + Home Assistant, Jeedom, Pushover alarms |
| Warranty | 2 years, 14-day return |
Questions
PylonCheck or Pylon-Check?
Same product, two spellings — PylonCheck, Pylon-Check and Pylon Check all mean the box sold at pylon-check.com.
Is PylonCheck made by Pylontech?
No. PylonCheck is an independent accessory made in France for Pylontech batteries.
Does PylonCheck need a subscription?
No. The cloud dashboard, history and alerts are included in the 39 € price.
Where can I buy PylonCheck?
Here, at pylon-check.com. It ships from France within 1–3 business days.
Your battery, from anywhere. For 39 €.
Cloud dashboard, history, alerts, Home Assistant and MQTT included. No subscription.