Made in France · read-only · Home Assistant ready

Your Daly smart BMS, on Wi-Fi at last

Daly BMS boards protect a huge number of home-built packs. Daly Monitor gives those packs a permanent, local dashboard instead of an occasional Bluetooth check.

Order now — €49.00 See what it shows →

€49 with cables. Dispatched from France; free cancellation until dispatch, 14-day returns.

Daly Monitor box with screen displaying battery charge, voltage and current

If you built a LiFePO4 pack in the last few years, there is a good chance it is protected by a Daly smart BMS. It measures every cell, the temperature probes and the current through the shunt, and it shares all of that over Bluetooth or through its communication port. In practice, most owners only look when something feels wrong.

Daly Monitor stays wired to the BMS through its RS485 communication module and keeps the data visible: on its own screen, on a local web dashboard you open from your phone, and in Home Assistant. It reads only, so your protection settings never change behind your back.

All the cells

Every cell voltage with the lowest and highest flagged and the spread computed for you.

Charge and current

State of charge, voltage, current and power, live from the BMS.

Temperatures

The probes wired to your BMS, with an alert when they cross your limits.

Protection status

Charge and discharge MOSFET state and each protection the BMS has triggered.

Home Assistant

MQTT auto-discovery creates the sensors; JSON API for the rest.

Read-only and local

No cloud needed, nothing written to the BMS.

Watch the pack work

The chart follows charge, discharge and state of charge over the day. Add the cell spread and you see whether your passive balancing keeps up, or whether one cell keeps hitting the top first.

With optional remote history, compare months and export CSV files.

Daly Monitor RJ45 socket and USB-C power socket

A tidy replacement for the dongle

The box connects to the RS485 side of the Daly BMS with an RJ45 cable and is powered by any USB charger. It is 70 × 70 × 36 mm with a colour screen.

The design is that of Pylon-Monitor, which already monitors Pylontech batteries, with a new RS485 / CAN board and firmware written for the Daly protocol.

Questions people ask first

Which Daly BMS work with it?

Daly smart BMS boards with an RS485 port or the Daly RS485 module. Tell us your board model and cell count when you order; we test that version before shipping.

My Daly BMS has only Bluetooth. Will it work?

Not with this box, which reads RS485. Write to us with your model: some boards accept an RS485 module.

Does it work on 12 V and 24 V packs?

The cell count matters more than the voltage. 4S, 8S and 16S packs are all on our list; tell us yours.

All questions →

Turn your Daly BMS into a smart-home sensor

Order Daly Monitor, shipped within ten weeks and tested on a Daly smart BMS.

Order for €49.00Dispatched within 10 weeks · free cancellation until dispatch