Pylon-Monitor Lite – WiFi Pylontech Monitoring, No Screen
Compatible with Pylontech batteries fitted with an RS-232 Console port: US5000, US3000C, US3000, US2000C, US2000B+, UP2500. Monitors up to 4 chained units (64 cells) individually from a single Pylon-Monitor, with a per-battery selector on the dashboard.
Main Features:
- Connection: Pylontech Console RJ45 (RS-232) port
- No physical screen — dashboard reachable at
http://pylon-monitor.localfrom any phone, tablet or PC - Power: USB-C (cable included)
- Web dashboard + JSON API (/api.json)
- Home Assistant ready (MQTT auto-discovery), Jeedom, Node-RED, Domoticz
- Remote diagnostics: per-cell voltage and temperature, SOC/SOH history, charge cycles
- Lifetime remote firmware updates (OTA)
- 100% local, no cloud, no subscription
Genuine parts, hydraulic crimping
Certified compatibility
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Key Features
- Authentic Amphenol connectors
- 25mm² cable section for maximum conductivity
- Compatible with Pylontech, BYD, and Goodwe batteries
- Complies with European safety standards
Quick Installation Guide
- Plug the included RJ45 cable between the Pylon-Monitor Lite and the battery's Console port, then power it with the included USB-C cable.
- Join the
PylonMonitor-SetupWiFi network from your phone, then select your own WiFi network. - Open
http://pylon-monitor.local(or the IP address shown during setup) in your browser: your battery's live dashboard appears instantly.
Frequently Asked Questions
- Can I add a screen later? No — the enclosure has no screen and no cutout for one. If there's any chance you'll want to read directly off the device, get the Pylon-Monitor V2 instead; the firmware and every other feature are identical.
- Does it work without internet? Yes, the device is 100% local on your WiFi network.
- Does it void my Pylontech warranty? No, the Console port is read-only and never changes battery behaviour.
- Compatible with multiple chained batteries? Yes, up to 4 units (64 cells) from a single device.
- Do I need an app or account? No, the dashboard works from any browser on your local network.
The Pylon-Monitor Lite runs the exact same firmware as the Pylon-Monitor V2: State of Charge, voltage, current, cell health (SOH) and temperatures from your Pylontech battery, read in real time straight from the Console (RJ45) port. Only the physical screen is missing — all the data is instead available on a web dashboard, opened over WiFi from your phone, tablet or PC at http://pylon-monitor.local, plus a full JSON API.
Same plug & play install as the V2: under 2 minutes from unboxing to a live dashboard, no app, no account, no cloud. Designed, assembled and tested in small batches by our partner pylon-monitor.com.
Recommended Uses
Ideal for remote monitoring and diagnostics of a Pylontech battery installed in a basement, garage or plant room — check state of charge, voltage, cells and temperatures over WiFi from your phone or PC, no on-device screen to walk up to. A local, subscription-free, lower-cost alternative to the screen model for solar installers and off-grid enthusiasts who check their battery from a phone or PC anyway.
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